Finding the Fourth Proportional to 1,365.56, 1,884.72 and 841.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.56 : 1,884.72 = 841.64 : x
2. Step 2: Convert to fraction form
   1,365.56/1,884.72 = 841.64/x
3. Step 3: Cross multiply
   1,365.56x = 1,884.72 × 841.64
4. Step 4: Simplify right side
   1,365.56x = 1,586,255.74
5. Step 5: Solve for x
   x = 1,586,255.74/1,365.56
6. Step 6: Final answer
   x = 1,161.62