Finding the Fourth Proportional to 1,077.48, 1,607.01 and 979.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.48 : 1,607.01 = 979.56 : x
2. Step 2: Convert to fraction form
   1,077.48/1,607.01 = 979.56/x
3. Step 3: Cross multiply
   1,077.48x = 1,607.01 × 979.56
4. Step 4: Simplify right side
   1,077.48x = 1,574,162.72
5. Step 5: Solve for x
   x = 1,574,162.72/1,077.48
6. Step 6: Final answer
   x = 1,460.97