Finding the Fourth Proportional to 3,406.63, 5,109.38 and 940.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,406.63 : 5,109.38 = 940.88 : x
2. Step 2: Convert to fraction form
   3,406.63/5,109.38 = 940.88/x
3. Step 3: Cross multiply
   3,406.63x = 5,109.38 × 940.88
4. Step 4: Simplify right side
   3,406.63x = 4,807,321.52
5. Step 5: Solve for x
   x = 4,807,321.52/3,406.63
6. Step 6: Final answer
   x = 1,411.17