Finding the Fourth Proportional to 1,339.65, 1,848.15 and 841.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.65 : 1,848.15 = 841.95 : x
2. Step 2: Convert to fraction form
   1,339.65/1,848.15 = 841.95/x
3. Step 3: Cross multiply
   1,339.65x = 1,848.15 × 841.95
4. Step 4: Simplify right side
   1,339.65x = 1,556,049.89
5. Step 5: Solve for x
   x = 1,556,049.89/1,339.65
6. Step 6: Final answer
   x = 1,161.53