Finding the Fourth Proportional to 2,148.16, 2,964.72 and 1,263.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.16 : 2,964.72 = 1,263.64 : x
2. Step 2: Convert to fraction form
   2,148.16/2,964.72 = 1,263.64/x
3. Step 3: Cross multiply
   2,148.16x = 2,964.72 × 1,263.64
4. Step 4: Simplify right side
   2,148.16x = 3,746,338.78
5. Step 5: Solve for x
   x = 3,746,338.78/2,148.16
6. Step 6: Final answer
   x = 1,743.98