Finding the Fourth Proportional to 2,761.02, 4,140.22 and 1,004.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.02 : 4,140.22 = 1,004.78 : x
2. Step 2: Convert to fraction form
   2,761.02/4,140.22 = 1,004.78/x
3. Step 3: Cross multiply
   2,761.02x = 4,140.22 × 1,004.78
4. Step 4: Simplify right side
   2,761.02x = 4,160,010.25
5. Step 5: Solve for x
   x = 4,160,010.25/2,761.02
6. Step 6: Final answer
   x = 1,506.69