Finding the Fourth Proportional to 1,940.84, 2,910.78 and 1,210.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.84 : 2,910.78 = 1,210.04 : x
2. Step 2: Convert to fraction form
   1,940.84/2,910.78 = 1,210.04/x
3. Step 3: Cross multiply
   1,940.84x = 2,910.78 × 1,210.04
4. Step 4: Simplify right side
   1,940.84x = 3,522,160.23
5. Step 5: Solve for x
   x = 3,522,160.23/1,940.84
6. Step 6: Final answer
   x = 1,814.76