Finding the Fourth Proportional to 1,504.78, 2,076.54 and 841.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.78 : 2,076.54 = 841.69 : x
2. Step 2: Convert to fraction form
   1,504.78/2,076.54 = 841.69/x
3. Step 3: Cross multiply
   1,504.78x = 2,076.54 × 841.69
4. Step 4: Simplify right side
   1,504.78x = 1,747,802.39
5. Step 5: Solve for x
   x = 1,747,802.39/1,504.78
6. Step 6: Final answer
   x = 1,161.50