Finding the Fourth Proportional to 1,761.72, 2,644.50 and 1,298.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.72 : 2,644.50 = 1,298.07 : x
2. Step 2: Convert to fraction form
   1,761.72/2,644.50 = 1,298.07/x
3. Step 3: Cross multiply
   1,761.72x = 2,644.50 × 1,298.07
4. Step 4: Simplify right side
   1,761.72x = 3,432,746.12
5. Step 5: Solve for x
   x = 3,432,746.12/1,761.72
6. Step 6: Final answer
   x = 1,948.52