Finding the Fourth Proportional to 1,369.84, 2,054.72 and 504.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.84 : 2,054.72 = 504.12 : x
2. Step 2: Convert to fraction form
   1,369.84/2,054.72 = 504.12/x
3. Step 3: Cross multiply
   1,369.84x = 2,054.72 × 504.12
4. Step 4: Simplify right side
   1,369.84x = 1,035,825.45
5. Step 5: Solve for x
   x = 1,035,825.45/1,369.84
6. Step 6: Final answer
   x = 756.17