Finding the Fourth Proportional to 1,342.98, 1,852.56 and 923.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.98 : 1,852.56 = 923.28 : x
2. Step 2: Convert to fraction form
   1,342.98/1,852.56 = 923.28/x
3. Step 3: Cross multiply
   1,342.98x = 1,852.56 × 923.28
4. Step 4: Simplify right side
   1,342.98x = 1,710,431.60
5. Step 5: Solve for x
   x = 1,710,431.60/1,342.98
6. Step 6: Final answer
   x = 1,273.61