Finding the Fourth Proportional to 2,657.76, 3,667.56 and 1,478.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.76 : 3,667.56 = 1,478.81 : x
2. Step 2: Convert to fraction form
   2,657.76/3,667.56 = 1,478.81/x
3. Step 3: Cross multiply
   2,657.76x = 3,667.56 × 1,478.81
4. Step 4: Simplify right side
   2,657.76x = 5,423,624.40
5. Step 5: Solve for x
   x = 5,423,624.40/2,657.76
6. Step 6: Final answer
   x = 2,040.68