Finding the Fourth Proportional to 1,142.48, 1,575.88 and 700.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.48 : 1,575.88 = 700.22 : x
2. Step 2: Convert to fraction form
   1,142.48/1,575.88 = 700.22/x
3. Step 3: Cross multiply
   1,142.48x = 1,575.88 × 700.22
4. Step 4: Simplify right side
   1,142.48x = 1,103,462.69
5. Step 5: Solve for x
   x = 1,103,462.69/1,142.48
6. Step 6: Final answer
   x = 965.85