Finding the Fourth Proportional to 2,477.79, 3,419.33 and 1,358.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.79 : 3,419.33 = 1,358.78 : x
2. Step 2: Convert to fraction form
   2,477.79/3,419.33 = 1,358.78/x
3. Step 3: Cross multiply
   2,477.79x = 3,419.33 × 1,358.78
4. Step 4: Simplify right side
   2,477.79x = 4,646,093.33
5. Step 5: Solve for x
   x = 4,646,093.33/2,477.79
6. Step 6: Final answer
   x = 1,875.10