Finding the Fourth Proportional to 1,134.78, 1,565.98 and 692.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.78 : 1,565.98 = 692.59 : x
2. Step 2: Convert to fraction form
   1,134.78/1,565.98 = 692.59/x
3. Step 3: Cross multiply
   1,134.78x = 1,565.98 × 692.59
4. Step 4: Simplify right side
   1,134.78x = 1,084,582.09
5. Step 5: Solve for x
   x = 1,084,582.09/1,134.78
6. Step 6: Final answer
   x = 955.76