Finding the Fourth Proportional to 3,152.58, 4,727.98 and 931.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,152.58 : 4,727.98 = 931.89 : x
2. Step 2: Convert to fraction form
   3,152.58/4,727.98 = 931.89/x
3. Step 3: Cross multiply
   3,152.58x = 4,727.98 × 931.89
4. Step 4: Simplify right side
   3,152.58x = 4,405,957.28
5. Step 5: Solve for x
   x = 4,405,957.28/3,152.58
6. Step 6: Final answer
   x = 1,397.57