Finding the Fourth Proportional to 1,726.02, 2,586.69 and 1,109.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.02 : 2,586.69 = 1,109.43 : x
2. Step 2: Convert to fraction form
   1,726.02/2,586.69 = 1,109.43/x
3. Step 3: Cross multiply
   1,726.02x = 2,586.69 × 1,109.43
4. Step 4: Simplify right side
   1,726.02x = 2,869,751.49
5. Step 5: Solve for x
   x = 2,869,751.49/1,726.02
6. Step 6: Final answer
   x = 1,662.64