Finding the Fourth Proportional to 1,487.83, 2,243.17 and 1,387.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.83 : 2,243.17 = 1,387.46 : x
2. Step 2: Convert to fraction form
   1,487.83/2,243.17 = 1,387.46/x
3. Step 3: Cross multiply
   1,487.83x = 2,243.17 × 1,387.46
4. Step 4: Simplify right side
   1,487.83x = 3,112,308.65
5. Step 5: Solve for x
   x = 3,112,308.65/1,487.83
6. Step 6: Final answer
   x = 2,091.84