Finding the Fourth Proportional to 1,947.88, 2,923.38 and 1,023.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.88 : 2,923.38 = 1,023.99 : x
2. Step 2: Convert to fraction form
   1,947.88/2,923.38 = 1,023.99/x
3. Step 3: Cross multiply
   1,947.88x = 2,923.38 × 1,023.99
4. Step 4: Simplify right side
   1,947.88x = 2,993,492.15
5. Step 5: Solve for x
   x = 2,993,492.15/1,947.88
6. Step 6: Final answer
   x = 1,536.79