Finding the Fourth Proportional to 2,012.56, 2,781.98 and 1,679.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.56 : 2,781.98 = 1,679.04 : x
2. Step 2: Convert to fraction form
   2,012.56/2,781.98 = 1,679.04/x
3. Step 3: Cross multiply
   2,012.56x = 2,781.98 × 1,679.04
4. Step 4: Simplify right side
   2,012.56x = 4,671,055.70
5. Step 5: Solve for x
   x = 4,671,055.70/2,012.56
6. Step 6: Final answer
   x = 2,320.95