Finding the Fourth Proportional to 2,667.18, 3,676.18 and 1,870.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.18 : 3,676.18 = 1,870.74 : x
2. Step 2: Convert to fraction form
   2,667.18/3,676.18 = 1,870.74/x
3. Step 3: Cross multiply
   2,667.18x = 3,676.18 × 1,870.74
4. Step 4: Simplify right side
   2,667.18x = 6,877,176.97
5. Step 5: Solve for x
   x = 6,877,176.97/2,667.18
6. Step 6: Final answer
   x = 2,578.45