Finding the Fourth Proportional to 1,306,978,671.96, 1,803,630,604.10 and 720,267,807.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,978,671.96 : 1,803,630,604.10 = 720,267,807.96 : x
2. Step 2: Convert to fraction form
   1,306,978,671.96/1,803,630,604.10 = 720,267,807.96/x
3. Step 3: Cross multiply
   1,306,978,671.96x = 1,803,630,604.10 × 720,267,807.96
4. Step 4: Simplify right side
   1,306,978,671.96x = 1,299,097,061,581,076,224
5. Step 5: Solve for x
   x = 1,299,097,061,581,076,224/1,306,978,671.96
6. Step 6: Final answer
   x = 993,969,595.26