Finding the Fourth Proportional to 2,040.70, 3,061.15 and 1,068.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.70 : 3,061.15 = 1,068.70 : x
2. Step 2: Convert to fraction form
   2,040.70/3,061.15 = 1,068.70/x
3. Step 3: Cross multiply
   2,040.70x = 3,061.15 × 1,068.70
4. Step 4: Simplify right side
   2,040.70x = 3,271,451.01
5. Step 5: Solve for x
   x = 3,271,451.01/2,040.70
6. Step 6: Final answer
   x = 1,603.10