Finding the Fourth Proportional to 2,824.56, 3,898.02 and 1,878.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.56 : 3,898.02 = 1,878.60 : x
2. Step 2: Convert to fraction form
   2,824.56/3,898.02 = 1,878.60/x
3. Step 3: Cross multiply
   2,824.56x = 3,898.02 × 1,878.60
4. Step 4: Simplify right side
   2,824.56x = 7,322,820.37
5. Step 5: Solve for x
   x = 7,322,820.37/2,824.56
6. Step 6: Final answer
   x = 2,592.55