Finding the Fourth Proportional to 2,222.70, 3,333.15 and 761.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.70 : 3,333.15 = 761.10 : x
2. Step 2: Convert to fraction form
   2,222.70/3,333.15 = 761.10/x
3. Step 3: Cross multiply
   2,222.70x = 3,333.15 × 761.10
4. Step 4: Simplify right side
   2,222.70x = 2,536,860.47
5. Step 5: Solve for x
   x = 2,536,860.47/2,222.70
6. Step 6: Final answer
   x = 1,141.34