Finding the Fourth Proportional to 2,134.89, 2,944.62 and 1,387.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.89 : 2,944.62 = 1,387.46 : x
2. Step 2: Convert to fraction form
   2,134.89/2,944.62 = 1,387.46/x
3. Step 3: Cross multiply
   2,134.89x = 2,944.62 × 1,387.46
4. Step 4: Simplify right side
   2,134.89x = 4,085,527.74
5. Step 5: Solve for x
   x = 4,085,527.74/2,134.89
6. Step 6: Final answer
   x = 1,913.69