Finding the Fourth Proportional to 2,223.05, 3,331.94 and 761.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.05 : 3,331.94 = 761.00 : x
2. Step 2: Convert to fraction form
   2,223.05/3,331.94 = 761.00/x
3. Step 3: Cross multiply
   2,223.05x = 3,331.94 × 761.00
4. Step 4: Simplify right side
   2,223.05x = 2,535,585.88
5. Step 5: Solve for x
   x = 2,535,585.88/2,223.05
6. Step 6: Final answer
   x = 1,140.59