Finding the Fourth Proportional to 2,223.57, 3,333.12 and 761.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.57 : 3,333.12 = 761.73 : x
2. Step 2: Convert to fraction form
   2,223.57/3,333.12 = 761.73/x
3. Step 3: Cross multiply
   2,223.57x = 3,333.12 × 761.73
4. Step 4: Simplify right side
   2,223.57x = 2,538,937.50
5. Step 5: Solve for x
   x = 2,538,937.50/2,223.57
6. Step 6: Final answer
   x = 1,141.83