Finding the Fourth Proportional to 1,085.87, 1,498.15 and 693.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.87 : 1,498.15 = 693.02 : x
2. Step 2: Convert to fraction form
   1,085.87/1,498.15 = 693.02/x
3. Step 3: Cross multiply
   1,085.87x = 1,498.15 × 693.02
4. Step 4: Simplify right side
   1,085.87x = 1,038,252.52
5. Step 5: Solve for x
   x = 1,038,252.52/1,085.87
6. Step 6: Final answer
   x = 956.15