Finding the Fourth Proportional to 1,726.60, 2,576.98 and 1,491.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.60 : 2,576.98 = 1,491.30 : x
2. Step 2: Convert to fraction form
   1,726.60/2,576.98 = 1,491.30/x
3. Step 3: Cross multiply
   1,726.60x = 2,576.98 × 1,491.30
4. Step 4: Simplify right side
   1,726.60x = 3,843,050.27
5. Step 5: Solve for x
   x = 3,843,050.27/1,726.60
6. Step 6: Final answer
   x = 2,225.79