Finding the Fourth Proportional to 2,648.52, 3,971.31 and 1,262.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.52 : 3,971.31 = 1,262.16 : x
2. Step 2: Convert to fraction form
   2,648.52/3,971.31 = 1,262.16/x
3. Step 3: Cross multiply
   2,648.52x = 3,971.31 × 1,262.16
4. Step 4: Simplify right side
   2,648.52x = 5,012,428.63
5. Step 5: Solve for x
   x = 5,012,428.63/2,648.52
6. Step 6: Final answer
   x = 1,892.54