Finding the Fourth Proportional to 1,478.72, 2,041.50 and 1,146.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.72 : 2,041.50 = 1,146.42 : x
2. Step 2: Convert to fraction form
   1,478.72/2,041.50 = 1,146.42/x
3. Step 3: Cross multiply
   1,478.72x = 2,041.50 × 1,146.42
4. Step 4: Simplify right side
   1,478.72x = 2,340,420.73
5. Step 5: Solve for x
   x = 2,340,420.73/1,478.72
6. Step 6: Final answer
   x = 1,582.73