Finding the Fourth Proportional to 1,116,088.35, 1,672,803.31 and 777,294.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,088.35 : 1,672,803.31 = 777,294.72 : x
2. Step 2: Convert to fraction form
   1,116,088.35/1,672,803.31 = 777,294.72/x
3. Step 3: Cross multiply
   1,116,088.35x = 1,672,803.31 × 777,294.72
4. Step 4: Simplify right side
   1,116,088.35x = 1,300,261,180,461.52
5. Step 5: Solve for x
   x = 1,300,261,180,461.52/1,116,088.35
6. Step 6: Final answer
   x = 1,165,016.35