Finding the Fourth Proportional to 1,943.68, 2,681.28 and 1,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,943.68 : 2,681.28 = 1,354.72 : x
2. Step 2: Convert to fraction form
   1,943.68/2,681.28 = 1,354.72/x
3. Step 3: Cross multiply
   1,943.68x = 2,681.28 × 1,354.72
4. Step 4: Simplify right side
   1,943.68x = 3,632,383.64
5. Step 5: Solve for x
   x = 3,632,383.64/1,943.68
6. Step 6: Final answer
   x = 1,868.82