Finding the Fourth Proportional to 1,752.88, 2,418.86 and 1,006.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,752.88 : 2,418.86 = 1,006.31 : x
2. Step 2: Convert to fraction form
   1,752.88/2,418.86 = 1,006.31/x
3. Step 3: Cross multiply
   1,752.88x = 2,418.86 × 1,006.31
4. Step 4: Simplify right side
   1,752.88x = 2,434,131.57
5. Step 5: Solve for x
   x = 2,434,131.57/1,752.88
6. Step 6: Final answer
   x = 1,388.65