Finding the Fourth Proportional to 1,586.69, 2,187.59 and 1,232.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,586.69 : 2,187.59 = 1,232.01 : x
2. Step 2: Convert to fraction form
   1,586.69/2,187.59 = 1,232.01/x
3. Step 3: Cross multiply
   1,586.69x = 2,187.59 × 1,232.01
4. Step 4: Simplify right side
   1,586.69x = 2,695,121.82
5. Step 5: Solve for x
   x = 2,695,121.82/1,586.69
6. Step 6: Final answer
   x = 1,698.59