Finding the Fourth Proportional to 1,342.16, 1,852.29 and 845.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.16 : 1,852.29 = 845.22 : x
2. Step 2: Convert to fraction form
   1,342.16/1,852.29 = 845.22/x
3. Step 3: Cross multiply
   1,342.16x = 1,852.29 × 845.22
4. Step 4: Simplify right side
   1,342.16x = 1,565,592.55
5. Step 5: Solve for x
   x = 1,565,592.55/1,342.16
6. Step 6: Final answer
   x = 1,166.48