Finding the Fourth Proportional to 1,111.71, 1,535.10 and 692.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.71 : 1,535.10 = 692.24 : x
2. Step 2: Convert to fraction form
   1,111.71/1,535.10 = 692.24/x
3. Step 3: Cross multiply
   1,111.71x = 1,535.10 × 692.24
4. Step 4: Simplify right side
   1,111.71x = 1,062,649.95
5. Step 5: Solve for x
   x = 1,062,649.95/1,111.71
6. Step 6: Final answer
   x = 955.87