Finding the Fourth Proportional to 2,225.31, 3,333.10 and 1,127.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.31 : 3,333.10 = 1,127.79 : x
2. Step 2: Convert to fraction form
   2,225.31/3,333.10 = 1,127.79/x
3. Step 3: Cross multiply
   2,225.31x = 3,333.10 × 1,127.79
4. Step 4: Simplify right side
   2,225.31x = 3,759,036.85
5. Step 5: Solve for x
   x = 3,759,036.85/2,225.31
6. Step 6: Final answer
   x = 1,689.22