Finding the Fourth Proportional to 2,699.75, 3,715.31 and 2,623.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.75 : 3,715.31 = 2,623.61 : x
2. Step 2: Convert to fraction form
   2,699.75/3,715.31 = 2,623.61/x
3. Step 3: Cross multiply
   2,699.75x = 3,715.31 × 2,623.61
4. Step 4: Simplify right side
   2,699.75x = 9,747,492.77
5. Step 5: Solve for x
   x = 9,747,492.77/2,699.75
6. Step 6: Final answer
   x = 3,610.52