Finding the Fourth Proportional to 2,615.95, 3,914.74 and 1,788.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.95 : 3,914.74 = 1,788.67 : x
2. Step 2: Convert to fraction form
   2,615.95/3,914.74 = 1,788.67/x
3. Step 3: Cross multiply
   2,615.95x = 3,914.74 × 1,788.67
4. Step 4: Simplify right side
   2,615.95x = 7,002,178.00
5. Step 5: Solve for x
   x = 7,002,178.00/2,615.95
6. Step 6: Final answer
   x = 2,676.72