Finding the Fourth Proportional to 1,655.10, 2,283.89 and 946.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,655.10 : 2,283.89 = 946.80 : x
2. Step 2: Convert to fraction form
   1,655.10/2,283.89 = 946.80/x
3. Step 3: Cross multiply
   1,655.10x = 2,283.89 × 946.80
4. Step 4: Simplify right side
   1,655.10x = 2,162,382.32
5. Step 5: Solve for x
   x = 2,162,382.32/1,655.10
6. Step 6: Final answer
   x = 1,306.50