Finding the Fourth Proportional to 1,318,821.52, 1,819,974.72 and 715,209.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318,821.52 : 1,819,974.72 = 715,209.52 : x
2. Step 2: Convert to fraction form
   1,318,821.52/1,819,974.72 = 715,209.52/x
3. Step 3: Cross multiply
   1,318,821.52x = 1,819,974.72 × 715,209.52
4. Step 4: Simplify right side
   1,318,821.52x = 1,301,663,245,903.33
5. Step 5: Solve for x
   x = 1,301,663,245,903.33/1,318,821.52
6. Step 6: Final answer
   x = 986,989.69