Finding the Fourth Proportional to 1,352.45, 1,866.38 and 762.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.45 : 1,866.38 = 762.98 : x
2. Step 2: Convert to fraction form
   1,352.45/1,866.38 = 762.98/x
3. Step 3: Cross multiply
   1,352.45x = 1,866.38 × 762.98
4. Step 4: Simplify right side
   1,352.45x = 1,424,010.61
5. Step 5: Solve for x
   x = 1,424,010.61/1,352.45
6. Step 6: Final answer
   x = 1,052.91