Finding the Fourth Proportional to 1,006.27, 1,388.24 and 607.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,006.27 : 1,388.24 = 607.83 : x
2. Step 2: Convert to fraction form
   1,006.27/1,388.24 = 607.83/x
3. Step 3: Cross multiply
   1,006.27x = 1,388.24 × 607.83
4. Step 4: Simplify right side
   1,006.27x = 843,811.86
5. Step 5: Solve for x
   x = 843,811.86/1,006.27
6. Step 6: Final answer
   x = 838.55