Finding the Fourth Proportional to 1,348.02, 2,020.78 and 696.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.02 : 2,020.78 = 696.78 : x
2. Step 2: Convert to fraction form
   1,348.02/2,020.78 = 696.78/x
3. Step 3: Cross multiply
   1,348.02x = 2,020.78 × 696.78
4. Step 4: Simplify right side
   1,348.02x = 1,408,039.09
5. Step 5: Solve for x
   x = 1,408,039.09/1,348.02
6. Step 6: Final answer
   x = 1,044.52