Finding the Fourth Proportional to 1,023.50, 1,412.52 and 603.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023.50 : 1,412.52 = 603.98 : x
2. Step 2: Convert to fraction form
   1,023.50/1,412.52 = 603.98/x
3. Step 3: Cross multiply
   1,023.50x = 1,412.52 × 603.98
4. Step 4: Simplify right side
   1,023.50x = 853,126.77
5. Step 5: Solve for x
   x = 853,126.77/1,023.50
6. Step 6: Final answer
   x = 833.54