Finding the Fourth Proportional to 2,174.74, 3,002.25 and 1,378.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.74 : 3,002.25 = 1,378.87 : x
2. Step 2: Convert to fraction form
   2,174.74/3,002.25 = 1,378.87/x
3. Step 3: Cross multiply
   2,174.74x = 3,002.25 × 1,378.87
4. Step 4: Simplify right side
   2,174.74x = 4,139,721.38
5. Step 5: Solve for x
   x = 4,139,721.38/2,174.74
6. Step 6: Final answer
   x = 1,903.55