Finding the Fourth Proportional to 2,234.78, 3,080.41 and 1,761.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.78 : 3,080.41 = 1,761.90 : x
2. Step 2: Convert to fraction form
   2,234.78/3,080.41 = 1,761.90/x
3. Step 3: Cross multiply
   2,234.78x = 3,080.41 × 1,761.90
4. Step 4: Simplify right side
   2,234.78x = 5,427,374.38
5. Step 5: Solve for x
   x = 5,427,374.38/2,234.78
6. Step 6: Final answer
   x = 2,428.59