Finding the Fourth Proportional to 2,079.96, 2,870.54 and 1,148.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.96 : 2,870.54 = 1,148.76 : x
2. Step 2: Convert to fraction form
   2,079.96/2,870.54 = 1,148.76/x
3. Step 3: Cross multiply
   2,079.96x = 2,870.54 × 1,148.76
4. Step 4: Simplify right side
   2,079.96x = 3,297,561.53
5. Step 5: Solve for x
   x = 3,297,561.53/2,079.96
6. Step 6: Final answer
   x = 1,585.40