Finding the Fourth Proportional to 3,574.42, 4,932.71 and 1,981.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.42 : 4,932.71 = 1,981.15 : x
2. Step 2: Convert to fraction form
   3,574.42/4,932.71 = 1,981.15/x
3. Step 3: Cross multiply
   3,574.42x = 4,932.71 × 1,981.15
4. Step 4: Simplify right side
   3,574.42x = 9,772,428.51
5. Step 5: Solve for x
   x = 9,772,428.51/3,574.42
6. Step 6: Final answer
   x = 2,733.99