Finding the Fourth Proportional to 2,237.42, 3,087.87 and 1,242.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,237.42 : 3,087.87 = 1,242.83 : x
2. Step 2: Convert to fraction form
   2,237.42/3,087.87 = 1,242.83/x
3. Step 3: Cross multiply
   2,237.42x = 3,087.87 × 1,242.83
4. Step 4: Simplify right side
   2,237.42x = 3,837,697.47
5. Step 5: Solve for x
   x = 3,837,697.47/2,237.42
6. Step 6: Final answer
   x = 1,715.23