Finding the Fourth Proportional to 1,342.09, 1,852.16 and 1,009.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.09 : 1,852.16 = 1,009.92 : x
2. Step 2: Convert to fraction form
   1,342.09/1,852.16 = 1,009.92/x
3. Step 3: Cross multiply
   1,342.09x = 1,852.16 × 1,009.92
4. Step 4: Simplify right side
   1,342.09x = 1,870,533.43
5. Step 5: Solve for x
   x = 1,870,533.43/1,342.09
6. Step 6: Final answer
   x = 1,393.75