Finding the Fourth Proportional to 1,565.05, 2,159.50 and 935.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,565.05 : 2,159.50 = 935.83 : x
2. Step 2: Convert to fraction form
   1,565.05/2,159.50 = 935.83/x
3. Step 3: Cross multiply
   1,565.05x = 2,159.50 × 935.83
4. Step 4: Simplify right side
   1,565.05x = 2,020,924.89
5. Step 5: Solve for x
   x = 2,020,924.89/1,565.05
6. Step 6: Final answer
   x = 1,291.29