Finding the Fourth Proportional to 1,761.31, 2,429.64 and 1,122.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.31 : 2,429.64 = 1,122.06 : x
2. Step 2: Convert to fraction form
   1,761.31/2,429.64 = 1,122.06/x
3. Step 3: Cross multiply
   1,761.31x = 2,429.64 × 1,122.06
4. Step 4: Simplify right side
   1,761.31x = 2,726,184.10
5. Step 5: Solve for x
   x = 2,726,184.10/1,761.31
6. Step 6: Final answer
   x = 1,547.82