Finding the Fourth Proportional to 2,487.51, 3,730.05 and 1,391.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.51 : 3,730.05 = 1,391.58 : x
2. Step 2: Convert to fraction form
   2,487.51/3,730.05 = 1,391.58/x
3. Step 3: Cross multiply
   2,487.51x = 3,730.05 × 1,391.58
4. Step 4: Simplify right side
   2,487.51x = 5,190,662.98
5. Step 5: Solve for x
   x = 5,190,662.98/2,487.51
6. Step 6: Final answer
   x = 2,086.69