Finding the Fourth Proportional to 1,346.00, 1,853.46 and 1,280.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.00 : 1,853.46 = 1,280.39 : x
2. Step 2: Convert to fraction form
   1,346.00/1,853.46 = 1,280.39/x
3. Step 3: Cross multiply
   1,346.00x = 1,853.46 × 1,280.39
4. Step 4: Simplify right side
   1,346.00x = 2,373,142.38
5. Step 5: Solve for x
   x = 2,373,142.38/1,346.00
6. Step 6: Final answer
   x = 1,763.11