Finding the Fourth Proportional to 1,504.98, 2,076.72 and 841.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.98 : 2,076.72 = 841.80 : x
2. Step 2: Convert to fraction form
   1,504.98/2,076.72 = 841.80/x
3. Step 3: Cross multiply
   1,504.98x = 2,076.72 × 841.80
4. Step 4: Simplify right side
   1,504.98x = 1,748,182.90
5. Step 5: Solve for x
   x = 1,748,182.90/1,504.98
6. Step 6: Final answer
   x = 1,161.60