Finding the Fourth Proportional to 1,196.15, 1,651.71 and 919.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.15 : 1,651.71 = 919.13 : x
2. Step 2: Convert to fraction form
   1,196.15/1,651.71 = 919.13/x
3. Step 3: Cross multiply
   1,196.15x = 1,651.71 × 919.13
4. Step 4: Simplify right side
   1,196.15x = 1,518,131.40
5. Step 5: Solve for x
   x = 1,518,131.40/1,196.15
6. Step 6: Final answer
   x = 1,269.19