Finding the Fourth Proportional to 1,743.56, 2,405.90 and 1,277

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.56 : 2,405.90 = 1,277 : x
2. Step 2: Convert to fraction form
   1,743.56/2,405.90 = 1,277/x
3. Step 3: Cross multiply
   1,743.56x = 2,405.90 × 1,277
4. Step 4: Simplify right side
   1,743.56x = 3,072,334.30
5. Step 5: Solve for x
   x = 3,072,334.30/1,743.56
6. Step 6: Final answer
   x = 1,762.10