Finding the Fourth Proportional to 1,577.73, 2,362.46 and 1,112.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577.73 : 2,362.46 = 1,112.99 : x
2. Step 2: Convert to fraction form
   1,577.73/2,362.46 = 1,112.99/x
3. Step 3: Cross multiply
   1,577.73x = 2,362.46 × 1,112.99
4. Step 4: Simplify right side
   1,577.73x = 2,629,376.98
5. Step 5: Solve for x
   x = 2,629,376.98/1,577.73
6. Step 6: Final answer
   x = 1,666.56