Finding the Fourth Proportional to 1,118.05, 1,542.89 and 692.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.05 : 1,542.89 = 692.57 : x
2. Step 2: Convert to fraction form
   1,118.05/1,542.89 = 692.57/x
3. Step 3: Cross multiply
   1,118.05x = 1,542.89 × 692.57
4. Step 4: Simplify right side
   1,118.05x = 1,068,559.00
5. Step 5: Solve for x
   x = 1,068,559.00/1,118.05
6. Step 6: Final answer
   x = 955.73