Finding the Fourth Proportional to 1,078,066.50, 1,615,502.22 and 437,590.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,066.50 : 1,615,502.22 = 437,590.91 : x
2. Step 2: Convert to fraction form
   1,078,066.50/1,615,502.22 = 437,590.91/x
3. Step 3: Cross multiply
   1,078,066.50x = 1,615,502.22 × 437,590.91
4. Step 4: Simplify right side
   1,078,066.50x = 706,929,078,479.31
5. Step 5: Solve for x
   x = 706,929,078,479.31/1,078,066.50
6. Step 6: Final answer
   x = 655,737.91