Finding the Fourth Proportional to 2,087.02, 2,881.74 and 1,291.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.02 : 2,881.74 = 1,291.51 : x
2. Step 2: Convert to fraction form
   2,087.02/2,881.74 = 1,291.51/x
3. Step 3: Cross multiply
   2,087.02x = 2,881.74 × 1,291.51
4. Step 4: Simplify right side
   2,087.02x = 3,721,796.03
5. Step 5: Solve for x
   x = 3,721,796.03/2,087.02
6. Step 6: Final answer
   x = 1,783.31