Finding the Fourth Proportional to 3,870.50, 5,807.01 and 1,238.44

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.50 : 5,807.01 = 1,238.44 : x
2. Step 2: Convert to fraction form
   3,870.50/5,807.01 = 1,238.44/x
3. Step 3: Cross multiply
   3,870.50x = 5,807.01 × 1,238.44
4. Step 4: Simplify right side
   3,870.50x = 7,191,633.46
5. Step 5: Solve for x
   x = 7,191,633.46/3,870.50
6. Step 6: Final answer
   x = 1,858.06