Finding the Fourth Proportional to 1,487.52, 2,052.72 and 858.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.52 : 2,052.72 = 858.14 : x
2. Step 2: Convert to fraction form
   1,487.52/2,052.72 = 858.14/x
3. Step 3: Cross multiply
   1,487.52x = 2,052.72 × 858.14
4. Step 4: Simplify right side
   1,487.52x = 1,761,521.14
5. Step 5: Solve for x
   x = 1,761,521.14/1,487.52
6. Step 6: Final answer
   x = 1,184.20