Finding the Fourth Proportional to 1,471.56, 2,208.69 and 924.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.56 : 2,208.69 = 924.72 : x
2. Step 2: Convert to fraction form
   1,471.56/2,208.69 = 924.72/x
3. Step 3: Cross multiply
   1,471.56x = 2,208.69 × 924.72
4. Step 4: Simplify right side
   1,471.56x = 2,042,419.82
5. Step 5: Solve for x
   x = 2,042,419.82/1,471.56
6. Step 6: Final answer
   x = 1,387.93