Finding the Fourth Proportional to 1,352.58, 1,866.53 and 763.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.58 : 1,866.53 = 763.10 : x
2. Step 2: Convert to fraction form
   1,352.58/1,866.53 = 763.10/x
3. Step 3: Cross multiply
   1,352.58x = 1,866.53 × 763.10
4. Step 4: Simplify right side
   1,352.58x = 1,424,335.89
5. Step 5: Solve for x
   x = 1,424,335.89/1,352.58
6. Step 6: Final answer
   x = 1,053.05