Finding the Fourth Proportional to 1,346.43, 2,017.98 and 1,071.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.43 : 2,017.98 = 1,071.39 : x
2. Step 2: Convert to fraction form
   1,346.43/2,017.98 = 1,071.39/x
3. Step 3: Cross multiply
   1,346.43x = 2,017.98 × 1,071.39
4. Step 4: Simplify right side
   1,346.43x = 2,162,043.59
5. Step 5: Solve for x
   x = 2,162,043.59/1,346.43
6. Step 6: Final answer
   x = 1,605.76