Finding the Fourth Proportional to 5,904.72, 8,856.72 and 2,980.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,904.72 : 8,856.72 = 2,980.80 : x
2. Step 2: Convert to fraction form
   5,904.72/8,856.72 = 2,980.80/x
3. Step 3: Cross multiply
   5,904.72x = 8,856.72 × 2,980.80
4. Step 4: Simplify right side
   5,904.72x = 26,400,110.98
5. Step 5: Solve for x
   x = 26,400,110.98/5,904.72
6. Step 6: Final answer
   x = 4,471.02