Finding the Fourth Proportional to 1,767.84, 2,648.04 and 1,074.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.84 : 2,648.04 = 1,074.12 : x
2. Step 2: Convert to fraction form
   1,767.84/2,648.04 = 1,074.12/x
3. Step 3: Cross multiply
   1,767.84x = 2,648.04 × 1,074.12
4. Step 4: Simplify right side
   1,767.84x = 2,844,312.72
5. Step 5: Solve for x
   x = 2,844,312.72/1,767.84
6. Step 6: Final answer
   x = 1,608.92