Finding the Fourth Proportional to 1,089.75, 1,630.58 and 651.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.75 : 1,630.58 = 651.24 : x
2. Step 2: Convert to fraction form
   1,089.75/1,630.58 = 651.24/x
3. Step 3: Cross multiply
   1,089.75x = 1,630.58 × 651.24
4. Step 4: Simplify right side
   1,089.75x = 1,061,899.33
5. Step 5: Solve for x
   x = 1,061,899.33/1,089.75
6. Step 6: Final answer
   x = 974.45