Finding the Fourth Proportional to 933.80, 1,401.37 and 762.48

Step by Step Solution

1. Step 1: Write the proportion equation
   933.80 : 1,401.37 = 762.48 : x
2. Step 2: Convert to fraction form
   933.80/1,401.37 = 762.48/x
3. Step 3: Cross multiply
   933.80x = 1,401.37 × 762.48
4. Step 4: Simplify right side
   933.80x = 1,068,514.69
5. Step 5: Solve for x
   x = 1,068,514.69/933.80
6. Step 6: Final answer
   x = 1,144.27