Finding the Fourth Proportional to 2,079.86, 2,870.22 and 1,148.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.86 : 2,870.22 = 1,148.36 : x
2. Step 2: Convert to fraction form
   2,079.86/2,870.22 = 1,148.36/x
3. Step 3: Cross multiply
   2,079.86x = 2,870.22 × 1,148.36
4. Step 4: Simplify right side
   2,079.86x = 3,296,045.84
5. Step 5: Solve for x
   x = 3,296,045.84/2,079.86
6. Step 6: Final answer
   x = 1,584.74