Finding the Fourth Proportional to 1,752.76, 2,418.78 and 1,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,752.76 : 2,418.78 = 1,006.72 : x
2. Step 2: Convert to fraction form
   1,752.76/2,418.78 = 1,006.72/x
3. Step 3: Cross multiply
   1,752.76x = 2,418.78 × 1,006.72
4. Step 4: Simplify right side
   1,752.76x = 2,435,034.20
5. Step 5: Solve for x
   x = 2,435,034.20/1,752.76
6. Step 6: Final answer
   x = 1,389.26