Finding the Fourth Proportional to 1,087.08, 1,621.98 and 1,022.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.08 : 1,621.98 = 1,022.48 : x
2. Step 2: Convert to fraction form
   1,087.08/1,621.98 = 1,022.48/x
3. Step 3: Cross multiply
   1,087.08x = 1,621.98 × 1,022.48
4. Step 4: Simplify right side
   1,087.08x = 1,658,437.00
5. Step 5: Solve for x
   x = 1,658,437.00/1,087.08
6. Step 6: Final answer
   x = 1,525.59