Finding the Fourth Proportional to 2,651.13, 3,974.10 and 1,264.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.13 : 3,974.10 = 1,264.10 : x
2. Step 2: Convert to fraction form
   2,651.13/3,974.10 = 1,264.10/x
3. Step 3: Cross multiply
   2,651.13x = 3,974.10 × 1,264.10
4. Step 4: Simplify right side
   2,651.13x = 5,023,639.94
5. Step 5: Solve for x
   x = 5,023,639.94/2,651.13
6. Step 6: Final answer
   x = 1,894.91