Finding the Fourth Proportional to 1,521.78, 2,285.30 and 1,452.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.78 : 2,285.30 = 1,452.52 : x
2. Step 2: Convert to fraction form
   1,521.78/2,285.30 = 1,452.52/x
3. Step 3: Cross multiply
   1,521.78x = 2,285.30 × 1,452.52
4. Step 4: Simplify right side
   1,521.78x = 3,319,443.96
5. Step 5: Solve for x
   x = 3,319,443.96/1,521.78
6. Step 6: Final answer
   x = 2,181.29