Finding the Fourth Proportional to 1,352.63, 1,868.15 and 1,057.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.63 : 1,868.15 = 1,057.48 : x
2. Step 2: Convert to fraction form
   1,352.63/1,868.15 = 1,057.48/x
3. Step 3: Cross multiply
   1,352.63x = 1,868.15 × 1,057.48
4. Step 4: Simplify right side
   1,352.63x = 1,975,516.63
5. Step 5: Solve for x
   x = 1,975,516.63/1,352.63
6. Step 6: Final answer
   x = 1,460.50