Finding the Fourth Proportional to 2,141.94, 3,209.81 and 1,045.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.94 : 3,209.81 = 1,045.07 : x
2. Step 2: Convert to fraction form
   2,141.94/3,209.81 = 1,045.07/x
3. Step 3: Cross multiply
   2,141.94x = 3,209.81 × 1,045.07
4. Step 4: Simplify right side
   2,141.94x = 3,354,454.86
5. Step 5: Solve for x
   x = 3,354,454.86/2,141.94
6. Step 6: Final answer
   x = 1,566.08