Finding the Fourth Proportional to 3,581.59, 5,374.52 and 1,938.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.59 : 5,374.52 = 1,938.10 : x
2. Step 2: Convert to fraction form
   3,581.59/5,374.52 = 1,938.10/x
3. Step 3: Cross multiply
   3,581.59x = 5,374.52 × 1,938.10
4. Step 4: Simplify right side
   3,581.59x = 10,416,357.21
5. Step 5: Solve for x
   x = 10,416,357.21/3,581.59
6. Step 6: Final answer
   x = 2,908.31