Finding the Fourth Proportional to 2,280.34, 3,146.87 and 1,232.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.34 : 3,146.87 = 1,232.40 : x
2. Step 2: Convert to fraction form
   2,280.34/3,146.87 = 1,232.40/x
3. Step 3: Cross multiply
   2,280.34x = 3,146.87 × 1,232.40
4. Step 4: Simplify right side
   2,280.34x = 3,878,196.43
5. Step 5: Solve for x
   x = 3,878,196.43/2,280.34
6. Step 6: Final answer
   x = 1,700.71