Finding the Fourth Proportional to 1,049.64, 1,448.78 and 607.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.64 : 1,448.78 = 607.83 : x
2. Step 2: Convert to fraction form
   1,049.64/1,448.78 = 607.83/x
3. Step 3: Cross multiply
   1,049.64x = 1,448.78 × 607.83
4. Step 4: Simplify right side
   1,049.64x = 880,608.91
5. Step 5: Solve for x
   x = 880,608.91/1,049.64
6. Step 6: Final answer
   x = 838.96