Finding the Fourth Proportional to 1,049.29, 1,447.90 and 607.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.29 : 1,447.90 = 607.10 : x
2. Step 2: Convert to fraction form
   1,049.29/1,447.90 = 607.10/x
3. Step 3: Cross multiply
   1,049.29x = 1,447.90 × 607.10
4. Step 4: Simplify right side
   1,049.29x = 879,011.33
5. Step 5: Solve for x
   x = 879,011.33/1,049.29
6. Step 6: Final answer
   x = 837.72