Finding the Fourth Proportional to 2,079.42, 2,870.18 and 1,229.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.42 : 2,870.18 = 1,229.46 : x
2. Step 2: Convert to fraction form
   2,079.42/2,870.18 = 1,229.46/x
3. Step 3: Cross multiply
   2,079.42x = 2,870.18 × 1,229.46
4. Step 4: Simplify right side
   2,079.42x = 3,528,771.50
5. Step 5: Solve for x
   x = 3,528,771.50/2,079.42
6. Step 6: Final answer
   x = 1,697.00