Finding the Fourth Proportional to 1,761.56, 2,646.18 and 1,078.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.56 : 2,646.18 = 1,078.04 : x
2. Step 2: Convert to fraction form
   1,761.56/2,646.18 = 1,078.04/x
3. Step 3: Cross multiply
   1,761.56x = 2,646.18 × 1,078.04
4. Step 4: Simplify right side
   1,761.56x = 2,852,687.89
5. Step 5: Solve for x
   x = 2,852,687.89/1,761.56
6. Step 6: Final answer
   x = 1,619.41