Finding the Fourth Proportional to 1,153.86, 1,729.63 and 997.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.86 : 1,729.63 = 997.06 : x
2. Step 2: Convert to fraction form
   1,153.86/1,729.63 = 997.06/x
3. Step 3: Cross multiply
   1,153.86x = 1,729.63 × 997.06
4. Step 4: Simplify right side
   1,153.86x = 1,724,544.89
5. Step 5: Solve for x
   x = 1,724,544.89/1,153.86
6. Step 6: Final answer
   x = 1,494.59