Finding the Fourth Proportional to 4,483.86, 6,190.56 and 2,891.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,483.86 : 6,190.56 = 2,891.10 : x
2. Step 2: Convert to fraction form
   4,483.86/6,190.56 = 2,891.10/x
3. Step 3: Cross multiply
   4,483.86x = 6,190.56 × 2,891.10
4. Step 4: Simplify right side
   4,483.86x = 17,897,528.02
5. Step 5: Solve for x
   x = 17,897,528.02/4,483.86
6. Step 6: Final answer
   x = 3,991.54