Finding the Fourth Proportional to 1,752.88, 2,419.05 and 1,007.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,752.88 : 2,419.05 = 1,007.05 : x
2. Step 2: Convert to fraction form
   1,752.88/2,419.05 = 1,007.05/x
3. Step 3: Cross multiply
   1,752.88x = 2,419.05 × 1,007.05
4. Step 4: Simplify right side
   1,752.88x = 2,436,104.30
5. Step 5: Solve for x
   x = 2,436,104.30/1,752.88
6. Step 6: Final answer
   x = 1,389.77