Finding the Fourth Proportional to 2,079.69, 2,870.94 and 1,283.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.69 : 2,870.94 = 1,283.16 : x
2. Step 2: Convert to fraction form
   2,079.69/2,870.94 = 1,283.16/x
3. Step 3: Cross multiply
   2,079.69x = 2,870.94 × 1,283.16
4. Step 4: Simplify right side
   2,079.69x = 3,683,875.37
5. Step 5: Solve for x
   x = 3,683,875.37/2,079.69
6. Step 6: Final answer
   x = 1,771.36