Finding the Fourth Proportional to 3,686.10, 5,530.47 and 1,837.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.10 : 5,530.47 = 1,837.05 : x
2. Step 2: Convert to fraction form
   3,686.10/5,530.47 = 1,837.05/x
3. Step 3: Cross multiply
   3,686.10x = 5,530.47 × 1,837.05
4. Step 4: Simplify right side
   3,686.10x = 10,159,749.91
5. Step 5: Solve for x
   x = 10,159,749.91/3,686.10
6. Step 6: Final answer
   x = 2,756.23