Finding the Fourth Proportional to 2,111.20, 3,160.51 and 1,565.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.20 : 3,160.51 = 1,565.80 : x
2. Step 2: Convert to fraction form
   2,111.20/3,160.51 = 1,565.80/x
3. Step 3: Cross multiply
   2,111.20x = 3,160.51 × 1,565.80
4. Step 4: Simplify right side
   2,111.20x = 4,948,726.56
5. Step 5: Solve for x
   x = 4,948,726.56/2,111.20
6. Step 6: Final answer
   x = 2,344.03