Finding the Fourth Proportional to 2,380.45, 3,572.98 and 1,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.45 : 3,572.98 = 1,148.72 : x
2. Step 2: Convert to fraction form
   2,380.45/3,572.98 = 1,148.72/x
3. Step 3: Cross multiply
   2,380.45x = 3,572.98 × 1,148.72
4. Step 4: Simplify right side
   2,380.45x = 4,104,362.52
5. Step 5: Solve for x
   x = 4,104,362.52/2,380.45
6. Step 6: Final answer
   x = 1,724.20