Finding the Fourth Proportional to 2,069.76, 3,100.50 and 972.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.76 : 3,100.50 = 972.66 : x
2. Step 2: Convert to fraction form
   2,069.76/3,100.50 = 972.66/x
3. Step 3: Cross multiply
   2,069.76x = 3,100.50 × 972.66
4. Step 4: Simplify right side
   2,069.76x = 3,015,732.33
5. Step 5: Solve for x
   x = 3,015,732.33/2,069.76
6. Step 6: Final answer
   x = 1,457.04