Finding the Fourth Proportional to 1,587.36, 2,189.61 and 1,049.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587.36 : 2,189.61 = 1,049.00 : x
2. Step 2: Convert to fraction form
   1,587.36/2,189.61 = 1,049.00/x
3. Step 3: Cross multiply
   1,587.36x = 2,189.61 × 1,049.00
4. Step 4: Simplify right side
   1,587.36x = 2,296,902.43
5. Step 5: Solve for x
   x = 2,296,902.43/1,587.36
6. Step 6: Final answer
   x = 1,446.99