Finding the Fourth Proportional to 2,214.50, 3,320.34 and 946.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.50 : 3,320.34 = 946.58 : x
2. Step 2: Convert to fraction form
   2,214.50/3,320.34 = 946.58/x
3. Step 3: Cross multiply
   2,214.50x = 3,320.34 × 946.58
4. Step 4: Simplify right side
   2,214.50x = 3,142,950.84
5. Step 5: Solve for x
   x = 3,142,950.84/2,214.50
6. Step 6: Final answer
   x = 1,419.26