Finding the Fourth Proportional to 2,521.80, 3,783.24 and 1,061.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.80 : 3,783.24 = 1,061.64 : x
2. Step 2: Convert to fraction form
   2,521.80/3,783.24 = 1,061.64/x
3. Step 3: Cross multiply
   2,521.80x = 3,783.24 × 1,061.64
4. Step 4: Simplify right side
   2,521.80x = 4,016,438.91
5. Step 5: Solve for x
   x = 4,016,438.91/2,521.80
6. Step 6: Final answer
   x = 1,592.69