Finding the Fourth Proportional to 1,726.01, 2,585.62 and 1,139.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.01 : 2,585.62 = 1,139.22 : x
2. Step 2: Convert to fraction form
   1,726.01/2,585.62 = 1,139.22/x
3. Step 3: Cross multiply
   1,726.01x = 2,585.62 × 1,139.22
4. Step 4: Simplify right side
   1,726.01x = 2,945,571.39
5. Step 5: Solve for x
   x = 2,945,571.39/1,726.01
6. Step 6: Final answer
   x = 1,706.58