Finding the Fourth Proportional to 1,147.89, 1,582.29 and 1,052.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.89 : 1,582.29 = 1,052.55 : x
2. Step 2: Convert to fraction form
   1,147.89/1,582.29 = 1,052.55/x
3. Step 3: Cross multiply
   1,147.89x = 1,582.29 × 1,052.55
4. Step 4: Simplify right side
   1,147.89x = 1,665,439.34
5. Step 5: Solve for x
   x = 1,665,439.34/1,147.89
6. Step 6: Final answer
   x = 1,450.87