Finding the Fourth Proportional to 1,345.38, 1,855.82 and 847.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.38 : 1,855.82 = 847.16 : x
2. Step 2: Convert to fraction form
   1,345.38/1,855.82 = 847.16/x
3. Step 3: Cross multiply
   1,345.38x = 1,855.82 × 847.16
4. Step 4: Simplify right side
   1,345.38x = 1,572,162.96
5. Step 5: Solve for x
   x = 1,572,162.96/1,345.38
6. Step 6: Final answer
   x = 1,168.56