Finding the Fourth Proportional to 1,615.84, 2,229.78 and 952.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.84 : 2,229.78 = 952.72 : x
2. Step 2: Convert to fraction form
   1,615.84/2,229.78 = 952.72/x
3. Step 3: Cross multiply
   1,615.84x = 2,229.78 × 952.72
4. Step 4: Simplify right side
   1,615.84x = 2,124,356.00
5. Step 5: Solve for x
   x = 2,124,356.00/1,615.84
6. Step 6: Final answer
   x = 1,314.71