Finding the Fourth Proportional to 1,006.03, 1,388.33 and 656.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,006.03 : 1,388.33 = 656.72 : x
2. Step 2: Convert to fraction form
   1,006.03/1,388.33 = 656.72/x
3. Step 3: Cross multiply
   1,006.03x = 1,388.33 × 656.72
4. Step 4: Simplify right side
   1,006.03x = 911,741.52
5. Step 5: Solve for x
   x = 911,741.52/1,006.03
6. Step 6: Final answer
   x = 906.28