Finding the Fourth Proportional to 3,817.80, 5,727.24 and 1,870.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,817.80 : 5,727.24 = 1,870.02 : x
2. Step 2: Convert to fraction form
   3,817.80/5,727.24 = 1,870.02/x
3. Step 3: Cross multiply
   3,817.80x = 5,727.24 × 1,870.02
4. Step 4: Simplify right side
   3,817.80x = 10,710,053.34
5. Step 5: Solve for x
   x = 10,710,053.34/3,817.80
6. Step 6: Final answer
   x = 2,805.29