Finding the Fourth Proportional to 1,234,300.74, 1,702,590.22 and 815,199.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,234,300.74 : 1,702,590.22 = 815,199.10 : x
2. Step 2: Convert to fraction form
   1,234,300.74/1,702,590.22 = 815,199.10/x
3. Step 3: Cross multiply
   1,234,300.74x = 1,702,590.22 × 815,199.10
4. Step 4: Simplify right side
   1,234,300.74x = 1,387,950,015,012.80
5. Step 5: Solve for x
   x = 1,387,950,015,012.80/1,234,300.74
6. Step 6: Final answer
   x = 1,124,482.85