Finding the Fourth Proportional to 1,200.16, 1,654.88 and 1,052.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.16 : 1,654.88 = 1,052.72 : x
2. Step 2: Convert to fraction form
   1,200.16/1,654.88 = 1,052.72/x
3. Step 3: Cross multiply
   1,200.16x = 1,654.88 × 1,052.72
4. Step 4: Simplify right side
   1,200.16x = 1,742,125.27
5. Step 5: Solve for x
   x = 1,742,125.27/1,200.16
6. Step 6: Final answer
   x = 1,451.58