Finding the Fourth Proportional to 1,342.86, 1,852.29 and 845.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.86 : 1,852.29 = 845.07 : x
2. Step 2: Convert to fraction form
   1,342.86/1,852.29 = 845.07/x
3. Step 3: Cross multiply
   1,342.86x = 1,852.29 × 845.07
4. Step 4: Simplify right side
   1,342.86x = 1,565,314.71
5. Step 5: Solve for x
   x = 1,565,314.71/1,342.86
6. Step 6: Final answer
   x = 1,165.66