Finding the Fourth Proportional to 1,148.72, 1,585.59 and 651.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,148.72 : 1,585.59 = 651.69 : x
2. Step 2: Convert to fraction form
   1,148.72/1,585.59 = 651.69/x
3. Step 3: Cross multiply
   1,148.72x = 1,585.59 × 651.69
4. Step 4: Simplify right side
   1,148.72x = 1,033,301.96
5. Step 5: Solve for x
   x = 1,033,301.96/1,148.72
6. Step 6: Final answer
   x = 899.53