Finding the Fourth Proportional to 2,079.84, 2,871.42 and 1,372.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.84 : 2,871.42 = 1,372.80 : x
2. Step 2: Convert to fraction form
   2,079.84/2,871.42 = 1,372.80/x
3. Step 3: Cross multiply
   2,079.84x = 2,871.42 × 1,372.80
4. Step 4: Simplify right side
   2,079.84x = 3,941,885.38
5. Step 5: Solve for x
   x = 3,941,885.38/2,079.84
6. Step 6: Final answer
   x = 1,895.28