Finding the Fourth Proportional to 1,087.12, 1,499.60 and 1,014.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.12 : 1,499.60 = 1,014.22 : x
2. Step 2: Convert to fraction form
   1,087.12/1,499.60 = 1,014.22/x
3. Step 3: Cross multiply
   1,087.12x = 1,499.60 × 1,014.22
4. Step 4: Simplify right side
   1,087.12x = 1,520,924.31
5. Step 5: Solve for x
   x = 1,520,924.31/1,087.12
6. Step 6: Final answer
   x = 1,399.04