Finding the Fourth Proportional to 1,350.23, 1,859.23 and 1,153.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.23 : 1,859.23 = 1,153.31 : x
2. Step 2: Convert to fraction form
   1,350.23/1,859.23 = 1,153.31/x
3. Step 3: Cross multiply
   1,350.23x = 1,859.23 × 1,153.31
4. Step 4: Simplify right side
   1,350.23x = 2,144,268.55
5. Step 5: Solve for x
   x = 2,144,268.55/1,350.23
6. Step 6: Final answer
   x = 1,588.08