Finding the Fourth Proportional to 1,045.87, 1,560.72 and 936.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.87 : 1,560.72 = 936.52 : x
2. Step 2: Convert to fraction form
   1,045.87/1,560.72 = 936.52/x
3. Step 3: Cross multiply
   1,045.87x = 1,560.72 × 936.52
4. Step 4: Simplify right side
   1,045.87x = 1,461,645.49
5. Step 5: Solve for x
   x = 1,461,645.49/1,045.87
6. Step 6: Final answer
   x = 1,397.54