Finding the Fourth Proportional to 1,105,127.58, 1,525,073.82 and 621,693.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,127.58 : 1,525,073.82 = 621,693.06 : x
2. Step 2: Convert to fraction form
   1,105,127.58/1,525,073.82 = 621,693.06/x
3. Step 3: Cross multiply
   1,105,127.58x = 1,525,073.82 × 621,693.06
4. Step 4: Simplify right side
   1,105,127.58x = 948,127,809,881.69
5. Step 5: Solve for x
   x = 948,127,809,881.69/1,105,127.58
6. Step 6: Final answer
   x = 857,935.16