Finding the Fourth Proportional to 1,095.89, 1,512.15 and 653.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.89 : 1,512.15 = 653.81 : x
2. Step 2: Convert to fraction form
   1,095.89/1,512.15 = 653.81/x
3. Step 3: Cross multiply
   1,095.89x = 1,512.15 × 653.81
4. Step 4: Simplify right side
   1,095.89x = 988,658.79
5. Step 5: Solve for x
   x = 988,658.79/1,095.89
6. Step 6: Final answer
   x = 902.15