Finding the Fourth Proportional to 3,820.14, 5,731.12 and 1,870.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.14 : 5,731.12 = 1,870.06 : x
2. Step 2: Convert to fraction form
   3,820.14/5,731.12 = 1,870.06/x
3. Step 3: Cross multiply
   3,820.14x = 5,731.12 × 1,870.06
4. Step 4: Simplify right side
   3,820.14x = 10,717,538.27
5. Step 5: Solve for x
   x = 10,717,538.27/3,820.14
6. Step 6: Final answer
   x = 2,805.54