Finding the Fourth Proportional to 1,589.00, 2,191.50 and 1,090.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,589.00 : 2,191.50 = 1,090.85 : x
2. Step 2: Convert to fraction form
   1,589.00/2,191.50 = 1,090.85/x
3. Step 3: Cross multiply
   1,589.00x = 2,191.50 × 1,090.85
4. Step 4: Simplify right side
   1,589.00x = 2,390,586.82
5. Step 5: Solve for x
   x = 2,390,586.82/1,589.00
6. Step 6: Final answer
   x = 1,504.46