Finding the Fourth Proportional to 1,354.72, 1,868.52 and 1,023.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.72 : 1,868.52 = 1,023.16 : x
2. Step 2: Convert to fraction form
   1,354.72/1,868.52 = 1,023.16/x
3. Step 3: Cross multiply
   1,354.72x = 1,868.52 × 1,023.16
4. Step 4: Simplify right side
   1,354.72x = 1,911,794.92
5. Step 5: Solve for x
   x = 1,911,794.92/1,354.72
6. Step 6: Final answer
   x = 1,411.21