Finding the Fourth Proportional to 2,070.56, 3,106.22 and 683.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.56 : 3,106.22 = 683.98 : x
2. Step 2: Convert to fraction form
   2,070.56/3,106.22 = 683.98/x
3. Step 3: Cross multiply
   2,070.56x = 3,106.22 × 683.98
4. Step 4: Simplify right side
   2,070.56x = 2,124,581.17
5. Step 5: Solve for x
   x = 2,124,581.17/2,070.56
6. Step 6: Final answer
   x = 1,026.09