Finding the Fourth Proportional to 2,158.75, 2,975.43 and 1,784.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.75 : 2,975.43 = 1,784.53 : x
2. Step 2: Convert to fraction form
   2,158.75/2,975.43 = 1,784.53/x
3. Step 3: Cross multiply
   2,158.75x = 2,975.43 × 1,784.53
4. Step 4: Simplify right side
   2,158.75x = 5,309,744.10
5. Step 5: Solve for x
   x = 5,309,744.10/2,158.75
6. Step 6: Final answer
   x = 2,459.64