Finding the Fourth Proportional to 2,623.95, 3,916.72 and 2,312.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.95 : 3,916.72 = 2,312.57 : x
2. Step 2: Convert to fraction form
   2,623.95/3,916.72 = 2,312.57/x
3. Step 3: Cross multiply
   2,623.95x = 3,916.72 × 2,312.57
4. Step 4: Simplify right side
   2,623.95x = 9,057,676.81
5. Step 5: Solve for x
   x = 9,057,676.81/2,623.95
6. Step 6: Final answer
   x = 3,451.93