Finding the Fourth Proportional to 2,012.50, 3,017.94 and 971.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.50 : 3,017.94 = 971.65 : x
2. Step 2: Convert to fraction form
   2,012.50/3,017.94 = 971.65/x
3. Step 3: Cross multiply
   2,012.50x = 3,017.94 × 971.65
4. Step 4: Simplify right side
   2,012.50x = 2,932,381.40
5. Step 5: Solve for x
   x = 2,932,381.40/2,012.50
6. Step 6: Final answer
   x = 1,457.08