Finding the Fourth Proportional to 2,187.42, 3,020.69 and 1,402.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.42 : 3,020.69 = 1,402.83 : x
2. Step 2: Convert to fraction form
   2,187.42/3,020.69 = 1,402.83/x
3. Step 3: Cross multiply
   2,187.42x = 3,020.69 × 1,402.83
4. Step 4: Simplify right side
   2,187.42x = 4,237,507.54
5. Step 5: Solve for x
   x = 4,237,507.54/2,187.42
6. Step 6: Final answer
   x = 1,937.22