Finding the Fourth Proportional to 2,657.81, 3,667.88 and 1,478.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.81 : 3,667.88 = 1,478.86 : x
2. Step 2: Convert to fraction form
   2,657.81/3,667.88 = 1,478.86/x
3. Step 3: Cross multiply
   2,657.81x = 3,667.88 × 1,478.86
4. Step 4: Simplify right side
   2,657.81x = 5,424,275.54
5. Step 5: Solve for x
   x = 5,424,275.54/2,657.81
6. Step 6: Final answer
   x = 2,040.88