Finding the Fourth Proportional to 2,477.83, 3,714.54 and 939.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.83 : 3,714.54 = 939.91 : x
2. Step 2: Convert to fraction form
   2,477.83/3,714.54 = 939.91/x
3. Step 3: Cross multiply
   2,477.83x = 3,714.54 × 939.91
4. Step 4: Simplify right side
   2,477.83x = 3,491,333.29
5. Step 5: Solve for x
   x = 3,491,333.29/2,477.83
6. Step 6: Final answer
   x = 1,409.03