Finding the Fourth Proportional to 1,471.48, 2,030.56 and 881.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.48 : 2,030.56 = 881.72 : x
2. Step 2: Convert to fraction form
   1,471.48/2,030.56 = 881.72/x
3. Step 3: Cross multiply
   1,471.48x = 2,030.56 × 881.72
4. Step 4: Simplify right side
   1,471.48x = 1,790,385.36
5. Step 5: Solve for x
   x = 1,790,385.36/1,471.48
6. Step 6: Final answer
   x = 1,216.72