Finding the Fourth Proportional to 2,656.94, 3,666.78 and 1,478.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.94 : 3,666.78 = 1,478.03 : x
2. Step 2: Convert to fraction form
   2,656.94/3,666.78 = 1,478.03/x
3. Step 3: Cross multiply
   2,656.94x = 3,666.78 × 1,478.03
4. Step 4: Simplify right side
   2,656.94x = 5,419,592.51
5. Step 5: Solve for x
   x = 5,419,592.51/2,656.94
6. Step 6: Final answer
   x = 2,039.79