Finding the Fourth Proportional to 1,565.22, 2,159.16 and 1,061.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,565.22 : 2,159.16 = 1,061.07 : x
2. Step 2: Convert to fraction form
   1,565.22/2,159.16 = 1,061.07/x
3. Step 3: Cross multiply
   1,565.22x = 2,159.16 × 1,061.07
4. Step 4: Simplify right side
   1,565.22x = 2,291,019.90
5. Step 5: Solve for x
   x = 2,291,019.90/1,565.22
6. Step 6: Final answer
   x = 1,463.70