Finding the Fourth Proportional to 2,624.89, 3,928.83 and 1,931.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.89 : 3,928.83 = 1,931.41 : x
2. Step 2: Convert to fraction form
   2,624.89/3,928.83 = 1,931.41/x
3. Step 3: Cross multiply
   2,624.89x = 3,928.83 × 1,931.41
4. Step 4: Simplify right side
   2,624.89x = 7,588,181.55
5. Step 5: Solve for x
   x = 7,588,181.55/2,624.89
6. Step 6: Final answer
   x = 2,890.86