Finding the Fourth Proportional to 1,941.99, 2,678.61 and 1,243.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.99 : 2,678.61 = 1,243.05 : x
2. Step 2: Convert to fraction form
   1,941.99/2,678.61 = 1,243.05/x
3. Step 3: Cross multiply
   1,941.99x = 2,678.61 × 1,243.05
4. Step 4: Simplify right side
   1,941.99x = 3,329,646.16
5. Step 5: Solve for x
   x = 3,329,646.16/1,941.99
6. Step 6: Final answer
   x = 1,714.55