Finding the Fourth Proportional to 3,090.83, 4,636.49 and 1,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,090.83 : 4,636.49 = 1,116.72 : x
2. Step 2: Convert to fraction form
   3,090.83/4,636.49 = 1,116.72/x
3. Step 3: Cross multiply
   3,090.83x = 4,636.49 × 1,116.72
4. Step 4: Simplify right side
   3,090.83x = 5,177,661.11
5. Step 5: Solve for x
   x = 5,177,661.11/3,090.83
6. Step 6: Final answer
   x = 1,675.17