Finding the Fourth Proportional to 2,736.63, 4,107.38 and 1,276.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.63 : 4,107.38 = 1,276.61 : x
2. Step 2: Convert to fraction form
   2,736.63/4,107.38 = 1,276.61/x
3. Step 3: Cross multiply
   2,736.63x = 4,107.38 × 1,276.61
4. Step 4: Simplify right side
   2,736.63x = 5,243,495.46
5. Step 5: Solve for x
   x = 5,243,495.46/2,736.63
6. Step 6: Final answer
   x = 1,916.04