Finding the Fourth Proportional to 2,237.37, 3,087.71 and 1,242.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,237.37 : 3,087.71 = 1,242.76 : x
2. Step 2: Convert to fraction form
   2,237.37/3,087.71 = 1,242.76/x
3. Step 3: Cross multiply
   2,237.37x = 3,087.71 × 1,242.76
4. Step 4: Simplify right side
   2,237.37x = 3,837,282.48
5. Step 5: Solve for x
   x = 3,837,282.48/2,237.37
6. Step 6: Final answer
   x = 1,715.09