Finding the Fourth Proportional to 2,650.61, 3,971.76 and 1,006.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.61 : 3,971.76 = 1,006.26 : x
2. Step 2: Convert to fraction form
   2,650.61/3,971.76 = 1,006.26/x
3. Step 3: Cross multiply
   2,650.61x = 3,971.76 × 1,006.26
4. Step 4: Simplify right side
   2,650.61x = 3,996,623.22
5. Step 5: Solve for x
   x = 3,996,623.22/2,650.61
6. Step 6: Final answer
   x = 1,507.82