Finding the Fourth Proportional to 1,131.53, 1,695.18 and 667.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.53 : 1,695.18 = 667.93 : x
2. Step 2: Convert to fraction form
   1,131.53/1,695.18 = 667.93/x
3. Step 3: Cross multiply
   1,131.53x = 1,695.18 × 667.93
4. Step 4: Simplify right side
   1,131.53x = 1,132,261.58
5. Step 5: Solve for x
   x = 1,132,261.58/1,131.53
6. Step 6: Final answer
   x = 1,000.65