Finding the Fourth Proportional to 2,113,300.20, 3,171,699.90 and 977,809.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,300.20 : 3,171,699.90 = 977,809.80 : x
2. Step 2: Convert to fraction form
   2,113,300.20/3,171,699.90 = 977,809.80/x
3. Step 3: Cross multiply
   2,113,300.20x = 3,171,699.90 × 977,809.80
4. Step 4: Simplify right side
   2,113,300.20x = 3,101,319,244,879.02
5. Step 5: Solve for x
   x = 3,101,319,244,879.02/2,113,300.20
6. Step 6: Final answer
   x = 1,467,524.23