Finding the Fourth Proportional to 2,652.13, 3,975.72 and 1,264.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,652.13 : 3,975.72 = 1,264.78 : x
2. Step 2: Convert to fraction form
   2,652.13/3,975.72 = 1,264.78/x
3. Step 3: Cross multiply
   2,652.13x = 3,975.72 × 1,264.78
4. Step 4: Simplify right side
   2,652.13x = 5,028,411.14
5. Step 5: Solve for x
   x = 5,028,411.14/2,652.13
6. Step 6: Final answer
   x = 1,895.99