Finding the Fourth Proportional to 1,342.80, 1,852.72 and 845.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.80 : 1,852.72 = 845.52 : x
2. Step 2: Convert to fraction form
   1,342.80/1,852.72 = 845.52/x
3. Step 3: Cross multiply
   1,342.80x = 1,852.72 × 845.52
4. Step 4: Simplify right side
   1,342.80x = 1,566,511.81
5. Step 5: Solve for x
   x = 1,566,511.81/1,342.80
6. Step 6: Final answer
   x = 1,166.60