Finding the Fourth Proportional to 2,068.76, 3,101.69 and 972.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.76 : 3,101.69 = 972.56 : x
2. Step 2: Convert to fraction form
   2,068.76/3,101.69 = 972.56/x
3. Step 3: Cross multiply
   2,068.76x = 3,101.69 × 972.56
4. Step 4: Simplify right side
   2,068.76x = 3,016,589.81
5. Step 5: Solve for x
   x = 3,016,589.81/2,068.76
6. Step 6: Final answer
   x = 1,458.16