Finding the Fourth Proportional to 1,402.25, 1,932.44 and 1,008.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.25 : 1,932.44 = 1,008.59 : x
2. Step 2: Convert to fraction form
   1,402.25/1,932.44 = 1,008.59/x
3. Step 3: Cross multiply
   1,402.25x = 1,932.44 × 1,008.59
4. Step 4: Simplify right side
   1,402.25x = 1,949,024.95
5. Step 5: Solve for x
   x = 1,949,024.95/1,402.25
6. Step 6: Final answer
   x = 1,389.93