Finding the Fourth Proportional to 1,549.49, 2,138.32 and 841.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549.49 : 2,138.32 = 841.34 : x
2. Step 2: Convert to fraction form
   1,549.49/2,138.32 = 841.34/x
3. Step 3: Cross multiply
   1,549.49x = 2,138.32 × 841.34
4. Step 4: Simplify right side
   1,549.49x = 1,799,061.40
5. Step 5: Solve for x
   x = 1,799,061.40/1,549.49
6. Step 6: Final answer
   x = 1,161.06