Finding the Fourth Proportional to 1,417.38, 1,953.33 and 1,023.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.38 : 1,953.33 = 1,023.72 : x
2. Step 2: Convert to fraction form
   1,417.38/1,953.33 = 1,023.72/x
3. Step 3: Cross multiply
   1,417.38x = 1,953.33 × 1,023.72
4. Step 4: Simplify right side
   1,417.38x = 1,999,662.99
5. Step 5: Solve for x
   x = 1,999,662.99/1,417.38
6. Step 6: Final answer
   x = 1,410.82