Finding the Fourth Proportional to 3,777.60, 5,213.27 and 2,099.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.60 : 5,213.27 = 2,099.01 : x
2. Step 2: Convert to fraction form
   3,777.60/5,213.27 = 2,099.01/x
3. Step 3: Cross multiply
   3,777.60x = 5,213.27 × 2,099.01
4. Step 4: Simplify right side
   3,777.60x = 10,942,705.86
5. Step 5: Solve for x
   x = 10,942,705.86/3,777.60
6. Step 6: Final answer
   x = 2,896.73