Finding the Fourth Proportional to 1,467.12, 2,026.23 and 1,139.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,467.12 : 2,026.23 = 1,139.46 : x
2. Step 2: Convert to fraction form
   1,467.12/2,026.23 = 1,139.46/x
3. Step 3: Cross multiply
   1,467.12x = 2,026.23 × 1,139.46
4. Step 4: Simplify right side
   1,467.12x = 2,308,808.04
5. Step 5: Solve for x
   x = 2,308,808.04/1,467.12
6. Step 6: Final answer
   x = 1,573.70