Finding the Fourth Proportional to 1,460.56, 2,015.76 and 839.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.56 : 2,015.76 = 839.56 : x
2. Step 2: Convert to fraction form
   1,460.56/2,015.76 = 839.56/x
3. Step 3: Cross multiply
   1,460.56x = 2,015.76 × 839.56
4. Step 4: Simplify right side
   1,460.56x = 1,692,351.47
5. Step 5: Solve for x
   x = 1,692,351.47/1,460.56
6. Step 6: Final answer
   x = 1,158.70