Finding the Fourth Proportional to 2,551.16, 3,827.76 and 1,165.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.16 : 3,827.76 = 1,165.15 : x
2. Step 2: Convert to fraction form
   2,551.16/3,827.76 = 1,165.15/x
3. Step 3: Cross multiply
   2,551.16x = 3,827.76 × 1,165.15
4. Step 4: Simplify right side
   2,551.16x = 4,459,914.56
5. Step 5: Solve for x
   x = 4,459,914.56/2,551.16
6. Step 6: Final answer
   x = 1,748.19