Finding the Fourth Proportional to 1,105,196.52, 1,525,108.86 and 621,782.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,196.52 : 1,525,108.86 = 621,782.04 : x
2. Step 2: Convert to fraction form
   1,105,196.52/1,525,108.86 = 621,782.04/x
3. Step 3: Cross multiply
   1,105,196.52x = 1,525,108.86 × 621,782.04
4. Step 4: Simplify right side
   1,105,196.52x = 948,285,298,192.88
5. Step 5: Solve for x
   x = 948,285,298,192.88/1,105,196.52
6. Step 6: Final answer
   x = 858,024.14