Finding the Fourth Proportional to 2,657.76, 3,667.86 and 1,478.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.76 : 3,667.86 = 1,478.75 : x
2. Step 2: Convert to fraction form
   2,657.76/3,667.86 = 1,478.75/x
3. Step 3: Cross multiply
   2,657.76x = 3,667.86 × 1,478.75
4. Step 4: Simplify right side
   2,657.76x = 5,423,829.64
5. Step 5: Solve for x
   x = 5,423,829.64/2,657.76
6. Step 6: Final answer
   x = 2,040.75