Finding the Fourth Proportional to 2,270.84, 3,133.59 and 1,386.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.84 : 3,133.59 = 1,386.45 : x
2. Step 2: Convert to fraction form
   2,270.84/3,133.59 = 1,386.45/x
3. Step 3: Cross multiply
   2,270.84x = 3,133.59 × 1,386.45
4. Step 4: Simplify right side
   2,270.84x = 4,344,565.86
5. Step 5: Solve for x
   x = 4,344,565.86/2,270.84
6. Step 6: Final answer
   x = 1,913.20