Finding the Fourth Proportional to 1,471.68, 2,032.72 and 1,100.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.68 : 2,032.72 = 1,100.31 : x
2. Step 2: Convert to fraction form
   1,471.68/2,032.72 = 1,100.31/x
3. Step 3: Cross multiply
   1,471.68x = 2,032.72 × 1,100.31
4. Step 4: Simplify right side
   1,471.68x = 2,236,611.56
5. Step 5: Solve for x
   x = 2,236,611.56/1,471.68
6. Step 6: Final answer
   x = 1,519.77