Finding the Fourth Proportional to 1,878.14, 2,589.88 and 1,613.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.14 : 2,589.88 = 1,613.46 : x
2. Step 2: Convert to fraction form
   1,878.14/2,589.88 = 1,613.46/x
3. Step 3: Cross multiply
   1,878.14x = 2,589.88 × 1,613.46
4. Step 4: Simplify right side
   1,878.14x = 4,178,667.78
5. Step 5: Solve for x
   x = 4,178,667.78/1,878.14
6. Step 6: Final answer
   x = 2,224.90