Finding the Fourth Proportional to 1,550.56, 2,136.16 and 1,269.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.56 : 2,136.16 = 1,269.15 : x
2. Step 2: Convert to fraction form
   1,550.56/2,136.16 = 1,269.15/x
3. Step 3: Cross multiply
   1,550.56x = 2,136.16 × 1,269.15
4. Step 4: Simplify right side
   1,550.56x = 2,711,107.46
5. Step 5: Solve for x
   x = 2,711,107.46/1,550.56
6. Step 6: Final answer
   x = 1,748.47