Finding the Fourth Proportional to 2,631.06, 3,948.57 and 2,610.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.06 : 3,948.57 = 2,610.51 : x
2. Step 2: Convert to fraction form
   2,631.06/3,948.57 = 2,610.51/x
3. Step 3: Cross multiply
   2,631.06x = 3,948.57 × 2,610.51
4. Step 4: Simplify right side
   2,631.06x = 10,307,781.47
5. Step 5: Solve for x
   x = 10,307,781.47/2,631.06
6. Step 6: Final answer
   x = 3,917.73