Finding the Fourth Proportional to 1,752.91, 2,417.37 and 1,280.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,752.91 : 2,417.37 = 1,280.05 : x
2. Step 2: Convert to fraction form
   1,752.91/2,417.37 = 1,280.05/x
3. Step 3: Cross multiply
   1,752.91x = 2,417.37 × 1,280.05
4. Step 4: Simplify right side
   1,752.91x = 3,094,354.47
5. Step 5: Solve for x
   x = 3,094,354.47/1,752.91
6. Step 6: Final answer
   x = 1,765.27