Finding the Fourth Proportional to 1,725.04, 2,380.56 and 1,026.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.04 : 2,380.56 = 1,026.40 : x
2. Step 2: Convert to fraction form
   1,725.04/2,380.56 = 1,026.40/x
3. Step 3: Cross multiply
   1,725.04x = 2,380.56 × 1,026.40
4. Step 4: Simplify right side
   1,725.04x = 2,443,406.78
5. Step 5: Solve for x
   x = 2,443,406.78/1,725.04
6. Step 6: Final answer
   x = 1,416.43