Finding the Fourth Proportional to 1,333.76, 1,841.28 and 919.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.76 : 1,841.28 = 919.04 : x
2. Step 2: Convert to fraction form
   1,333.76/1,841.28 = 919.04/x
3. Step 3: Cross multiply
   1,333.76x = 1,841.28 × 919.04
4. Step 4: Simplify right side
   1,333.76x = 1,692,209.97
5. Step 5: Solve for x
   x = 1,692,209.97/1,333.76
6. Step 6: Final answer
   x = 1,268.75