Finding the Fourth Proportional to 1,152.32, 1,727.94 and 372.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.32 : 1,727.94 = 372.18 : x
2. Step 2: Convert to fraction form
   1,152.32/1,727.94 = 372.18/x
3. Step 3: Cross multiply
   1,152.32x = 1,727.94 × 372.18
4. Step 4: Simplify right side
   1,152.32x = 643,104.71
5. Step 5: Solve for x
   x = 643,104.71/1,152.32
6. Step 6: Final answer
   x = 558.10