Finding the Fourth Proportional to 1,155.89, 1,729.73 and 846.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.89 : 1,729.73 = 846.99 : x
2. Step 2: Convert to fraction form
   1,155.89/1,729.73 = 846.99/x
3. Step 3: Cross multiply
   1,155.89x = 1,729.73 × 846.99
4. Step 4: Simplify right side
   1,155.89x = 1,465,066.13
5. Step 5: Solve for x
   x = 1,465,066.13/1,155.89
6. Step 6: Final answer
   x = 1,267.48