Finding the Fourth Proportional to 3,715.32, 5,570.34 and 1,865.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.32 : 5,570.34 = 1,865.10 : x
2. Step 2: Convert to fraction form
   3,715.32/5,570.34 = 1,865.10/x
3. Step 3: Cross multiply
   3,715.32x = 5,570.34 × 1,865.10
4. Step 4: Simplify right side
   3,715.32x = 10,389,241.13
5. Step 5: Solve for x
   x = 10,389,241.13/3,715.32
6. Step 6: Final answer
   x = 2,796.32