Finding the Fourth Proportional to 2,926.56, 4,039.56 and 1,878.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.56 : 4,039.56 = 1,878.42 : x
2. Step 2: Convert to fraction form
   2,926.56/4,039.56 = 1,878.42/x
3. Step 3: Cross multiply
   2,926.56x = 4,039.56 × 1,878.42
4. Step 4: Simplify right side
   2,926.56x = 7,587,990.30
5. Step 5: Solve for x
   x = 7,587,990.30/2,926.56
6. Step 6: Final answer
   x = 2,592.80