Finding the Fourth Proportional to 1,912.75, 2,864.50 and 1,088.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.75 : 2,864.50 = 1,088.52 : x
2. Step 2: Convert to fraction form
   1,912.75/2,864.50 = 1,088.52/x
3. Step 3: Cross multiply
   1,912.75x = 2,864.50 × 1,088.52
4. Step 4: Simplify right side
   1,912.75x = 3,118,060.10
5. Step 5: Solve for x
   x = 3,118,060.10/1,912.75
6. Step 6: Final answer
   x = 1,630.15