Finding the Fourth Proportional to 2,012.10, 3,018.18 and 1,237.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.10 : 3,018.18 = 1,237.07 : x
2. Step 2: Convert to fraction form
   2,012.10/3,018.18 = 1,237.07/x
3. Step 3: Cross multiply
   2,012.10x = 3,018.18 × 1,237.07
4. Step 4: Simplify right side
   2,012.10x = 3,733,684.84
5. Step 5: Solve for x
   x = 3,733,684.84/2,012.10
6. Step 6: Final answer
   x = 1,855.62