Finding the Fourth Proportional to 1,345.82, 1,855.98 and 841.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.82 : 1,855.98 = 841.02 : x
2. Step 2: Convert to fraction form
   1,345.82/1,855.98 = 841.02/x
3. Step 3: Cross multiply
   1,345.82x = 1,855.98 × 841.02
4. Step 4: Simplify right side
   1,345.82x = 1,560,909.34
5. Step 5: Solve for x
   x = 1,560,909.34/1,345.82
6. Step 6: Final answer
   x = 1,159.82