Finding the Fourth Proportional to 2,146.40, 2,961.54 and 1,359.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.40 : 2,961.54 = 1,359.99 : x
2. Step 2: Convert to fraction form
   2,146.40/2,961.54 = 1,359.99/x
3. Step 3: Cross multiply
   2,146.40x = 2,961.54 × 1,359.99
4. Step 4: Simplify right side
   2,146.40x = 4,027,664.78
5. Step 5: Solve for x
   x = 4,027,664.78/2,146.40
6. Step 6: Final answer
   x = 1,876.48