Finding the Fourth Proportional to 2,143.53, 3,212.55 and 973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.53 : 3,212.55 = 973.50 : x
2. Step 2: Convert to fraction form
   2,143.53/3,212.55 = 973.50/x
3. Step 3: Cross multiply
   2,143.53x = 3,212.55 × 973.50
4. Step 4: Simplify right side
   2,143.53x = 3,127,417.43
5. Step 5: Solve for x
   x = 3,127,417.43/2,143.53
6. Step 6: Final answer
   x = 1,459.00