Finding the Fourth Proportional to 2,042.78, 3,064.20 and 888.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.78 : 3,064.20 = 888.50 : x
2. Step 2: Convert to fraction form
   2,042.78/3,064.20 = 888.50/x
3. Step 3: Cross multiply
   2,042.78x = 3,064.20 × 888.50
4. Step 4: Simplify right side
   2,042.78x = 2,722,541.70
5. Step 5: Solve for x
   x = 2,722,541.70/2,042.78
6. Step 6: Final answer
   x = 1,332.76