Finding the Fourth Proportional to 1,368.99, 1,888.01 and 890.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.99 : 1,888.01 = 890.24 : x
2. Step 2: Convert to fraction form
   1,368.99/1,888.01 = 890.24/x
3. Step 3: Cross multiply
   1,368.99x = 1,888.01 × 890.24
4. Step 4: Simplify right side
   1,368.99x = 1,680,782.02
5. Step 5: Solve for x
   x = 1,680,782.02/1,368.99
6. Step 6: Final answer
   x = 1,227.75