Finding the Fourth Proportional to 3,585.42, 4,947.72 and 1,992.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,585.42 : 4,947.72 = 1,992.18 : x
2. Step 2: Convert to fraction form
   3,585.42/4,947.72 = 1,992.18/x
3. Step 3: Cross multiply
   3,585.42x = 4,947.72 × 1,992.18
4. Step 4: Simplify right side
   3,585.42x = 9,856,748.83
5. Step 5: Solve for x
   x = 9,856,748.83/3,585.42
6. Step 6: Final answer
   x = 2,749.12