Finding the Fourth Proportional to 1,942.22, 2,910.27 and 1,210.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.22 : 2,910.27 = 1,210.70 : x
2. Step 2: Convert to fraction form
   1,942.22/2,910.27 = 1,210.70/x
3. Step 3: Cross multiply
   1,942.22x = 2,910.27 × 1,210.70
4. Step 4: Simplify right side
   1,942.22x = 3,523,463.89
5. Step 5: Solve for x
   x = 3,523,463.89/1,942.22
6. Step 6: Final answer
   x = 1,814.14