Finding the Fourth Proportional to 789,090.30, 1,088,949.42 and 426,513.24

Step by Step Solution

1. Step 1: Write the proportion equation
   789,090.30 : 1,088,949.42 = 426,513.24 : x
2. Step 2: Convert to fraction form
   789,090.30/1,088,949.42 = 426,513.24/x
3. Step 3: Cross multiply
   789,090.30x = 1,088,949.42 × 426,513.24
4. Step 4: Simplify right side
   789,090.30x = 464,451,345,320.32
5. Step 5: Solve for x
   x = 464,451,345,320.32/789,090.30
6. Step 6: Final answer
   x = 588,590.87