Finding the Fourth Proportional to 2,381.50, 3,287.91 and 1,554.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.50 : 3,287.91 = 1,554.94 : x
2. Step 2: Convert to fraction form
   2,381.50/3,287.91 = 1,554.94/x
3. Step 3: Cross multiply
   2,381.50x = 3,287.91 × 1,554.94
4. Step 4: Simplify right side
   2,381.50x = 5,112,502.78
5. Step 5: Solve for x
   x = 5,112,502.78/2,381.50
6. Step 6: Final answer
   x = 2,146.76