Finding the Fourth Proportional to 1,109,643.12, 1,531,388.34 and 626,250.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,643.12 : 1,531,388.34 = 626,250.42 : x
2. Step 2: Convert to fraction form
   1,109,643.12/1,531,388.34 = 626,250.42/x
3. Step 3: Cross multiply
   1,109,643.12x = 1,531,388.34 × 626,250.42
4. Step 4: Simplify right side
   1,109,643.12x = 959,032,591,108.10
5. Step 5: Solve for x
   x = 959,032,591,108.10/1,109,643.12
6. Step 6: Final answer
   x = 864,271.20