Finding the Fourth Proportional to 3,898.11, 5,378.71 and 3,701.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898.11 : 5,378.71 = 3,701.08 : x
2. Step 2: Convert to fraction form
   3,898.11/5,378.71 = 3,701.08/x
3. Step 3: Cross multiply
   3,898.11x = 5,378.71 × 3,701.08
4. Step 4: Simplify right side
   3,898.11x = 19,907,036.01
5. Step 5: Solve for x
   x = 19,907,036.01/3,898.11
6. Step 6: Final answer
   x = 5,106.84