Finding the Fourth Proportional to 1,417.45, 1,955.50 and 1,023.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.45 : 1,955.50 = 1,023.61 : x
2. Step 2: Convert to fraction form
   1,417.45/1,955.50 = 1,023.61/x
3. Step 3: Cross multiply
   1,417.45x = 1,955.50 × 1,023.61
4. Step 4: Simplify right side
   1,417.45x = 2,001,669.36
5. Step 5: Solve for x
   x = 2,001,669.36/1,417.45
6. Step 6: Final answer
   x = 1,412.16