Finding the Fourth Proportional to 2,148.59, 2,964.90 and 1,264.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.59 : 2,964.90 = 1,264.28 : x
2. Step 2: Convert to fraction form
   2,148.59/2,964.90 = 1,264.28/x
3. Step 3: Cross multiply
   2,148.59x = 2,964.90 × 1,264.28
4. Step 4: Simplify right side
   2,148.59x = 3,748,453.69
5. Step 5: Solve for x
   x = 3,748,453.69/2,148.59
6. Step 6: Final answer
   x = 1,744.61