Finding the Fourth Proportional to 1,256.47, 1,735.60 and 1,047.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.47 : 1,735.60 = 1,047.34 : x
2. Step 2: Convert to fraction form
   1,256.47/1,735.60 = 1,047.34/x
3. Step 3: Cross multiply
   1,256.47x = 1,735.60 × 1,047.34
4. Step 4: Simplify right side
   1,256.47x = 1,817,763.30
5. Step 5: Solve for x
   x = 1,817,763.30/1,256.47
6. Step 6: Final answer
   x = 1,446.72