Finding the Fourth Proportional to 1,478.52, 2,026.59 and 1,458.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.52 : 2,026.59 = 1,458.06 : x
2. Step 2: Convert to fraction form
   1,478.52/2,026.59 = 1,458.06/x
3. Step 3: Cross multiply
   1,478.52x = 2,026.59 × 1,458.06
4. Step 4: Simplify right side
   1,478.52x = 2,954,889.82
5. Step 5: Solve for x
   x = 2,954,889.82/1,478.52
6. Step 6: Final answer
   x = 1,998.55