Finding the Fourth Proportional to 2,259.36, 3,384.18 and 1,087.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.36 : 3,384.18 = 1,087.56 : x
2. Step 2: Convert to fraction form
   2,259.36/3,384.18 = 1,087.56/x
3. Step 3: Cross multiply
   2,259.36x = 3,384.18 × 1,087.56
4. Step 4: Simplify right side
   2,259.36x = 3,680,498.80
5. Step 5: Solve for x
   x = 3,680,498.80/2,259.36
6. Step 6: Final answer
   x = 1,629.00