Finding the Fourth Proportional to 1,087.05, 1,498.37 and 693.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.05 : 1,498.37 = 693.39 : x
2. Step 2: Convert to fraction form
   1,087.05/1,498.37 = 693.39/x
3. Step 3: Cross multiply
   1,087.05x = 1,498.37 × 693.39
4. Step 4: Simplify right side
   1,087.05x = 1,038,951.31
5. Step 5: Solve for x
   x = 1,038,951.31/1,087.05
6. Step 6: Final answer
   x = 955.75