Finding the Fourth Proportional to 1,761.71, 2,644.49 and 1,298.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.71 : 2,644.49 = 1,298.06 : x
2. Step 2: Convert to fraction form
   1,761.71/2,644.49 = 1,298.06/x
3. Step 3: Cross multiply
   1,761.71x = 2,644.49 × 1,298.06
4. Step 4: Simplify right side
   1,761.71x = 3,432,696.71
5. Step 5: Solve for x
   x = 3,432,696.71/1,761.71
6. Step 6: Final answer
   x = 1,948.50