Finding the Fourth Proportional to 1,099,062.57, 1,517,446.54 and 686,228.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,062.57 : 1,517,446.54 = 686,228.00 : x
2. Step 2: Convert to fraction form
   1,099,062.57/1,517,446.54 = 686,228.00/x
3. Step 3: Cross multiply
   1,099,062.57x = 1,517,446.54 × 686,228.00
4. Step 4: Simplify right side
   1,099,062.57x = 1,041,314,294,948.32
5. Step 5: Solve for x
   x = 1,041,314,294,948.32/1,099,062.57
6. Step 6: Final answer
   x = 947,456.79