Finding the Fourth Proportional to 1,767.40, 2,648.10 and 1,071.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.40 : 2,648.10 = 1,071.94 : x
2. Step 2: Convert to fraction form
   1,767.40/2,648.10 = 1,071.94/x
3. Step 3: Cross multiply
   1,767.40x = 2,648.10 × 1,071.94
4. Step 4: Simplify right side
   1,767.40x = 2,838,604.31
5. Step 5: Solve for x
   x = 2,838,604.31/1,767.40
6. Step 6: Final answer
   x = 1,606.09