Finding the Fourth Proportional to 1,071,223.30, 1,478,238.69 and 587,776.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,223.30 : 1,478,238.69 = 587,776.42 : x
2. Step 2: Convert to fraction form
   1,071,223.30/1,478,238.69 = 587,776.42/x
3. Step 3: Cross multiply
   1,071,223.30x = 1,478,238.69 × 587,776.42
4. Step 4: Simplify right side
   1,071,223.30x = 868,873,845,113.69
5. Step 5: Solve for x
   x = 868,873,845,113.69/1,071,223.30
6. Step 6: Final answer
   x = 811,104.32