Finding the Fourth Proportional to 3,663.31, 5,055.35 and 1,984.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.31 : 5,055.35 = 1,984.71 : x
2. Step 2: Convert to fraction form
   3,663.31/5,055.35 = 1,984.71/x
3. Step 3: Cross multiply
   3,663.31x = 5,055.35 × 1,984.71
4. Step 4: Simplify right side
   3,663.31x = 10,033,403.70
5. Step 5: Solve for x
   x = 10,033,403.70/3,663.31
6. Step 6: Final answer
   x = 2,738.89