Finding the Fourth Proportional to 2,942.28, 4,412.52 and 1,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.28 : 4,412.52 = 1,210.50 : x
2. Step 2: Convert to fraction form
   2,942.28/4,412.52 = 1,210.50/x
3. Step 3: Cross multiply
   2,942.28x = 4,412.52 × 1,210.50
4. Step 4: Simplify right side
   2,942.28x = 5,341,355.46
5. Step 5: Solve for x
   x = 5,341,355.46/2,942.28
6. Step 6: Final answer
   x = 1,815.38