Finding the Fourth Proportional to 2,705.92, 4,059.60 and 974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,705.92 : 4,059.60 = 974.72 : x
2. Step 2: Convert to fraction form
   2,705.92/4,059.60 = 974.72/x
3. Step 3: Cross multiply
   2,705.92x = 4,059.60 × 974.72
4. Step 4: Simplify right side
   2,705.92x = 3,956,973.31
5. Step 5: Solve for x
   x = 3,956,973.31/2,705.92
6. Step 6: Final answer
   x = 1,462.34