Finding the Fourth Proportional to 1,372.59, 1,894.52 and 841.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.59 : 1,894.52 = 841.65 : x
2. Step 2: Convert to fraction form
   1,372.59/1,894.52 = 841.65/x
3. Step 3: Cross multiply
   1,372.59x = 1,894.52 × 841.65
4. Step 4: Simplify right side
   1,372.59x = 1,594,515.39
5. Step 5: Solve for x
   x = 1,594,515.39/1,372.59
6. Step 6: Final answer
   x = 1,161.69