Finding the Fourth Proportional to 2,310.34, 3,188.54 and 1,315.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.34 : 3,188.54 = 1,315.76 : x
2. Step 2: Convert to fraction form
   2,310.34/3,188.54 = 1,315.76/x
3. Step 3: Cross multiply
   2,310.34x = 3,188.54 × 1,315.76
4. Step 4: Simplify right side
   2,310.34x = 4,195,353.39
5. Step 5: Solve for x
   x = 4,195,353.39/2,310.34
6. Step 6: Final answer
   x = 1,815.90