Finding the Fourth Proportional to 3,893.06, 5,811.86 and 3,756.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.06 : 5,811.86 = 3,756.37 : x
2. Step 2: Convert to fraction form
   3,893.06/5,811.86 = 3,756.37/x
3. Step 3: Cross multiply
   3,893.06x = 5,811.86 × 3,756.37
4. Step 4: Simplify right side
   3,893.06x = 21,831,496.55
5. Step 5: Solve for x
   x = 21,831,496.55/3,893.06
6. Step 6: Final answer
   x = 5,607.80