Finding the Fourth Proportional to 1,669.03, 2,503.69 and 436.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.03 : 2,503.69 = 436.43 : x
2. Step 2: Convert to fraction form
   1,669.03/2,503.69 = 436.43/x
3. Step 3: Cross multiply
   1,669.03x = 2,503.69 × 436.43
4. Step 4: Simplify right side
   1,669.03x = 1,092,690.59
5. Step 5: Solve for x
   x = 1,092,690.59/1,669.03
6. Step 6: Final answer
   x = 654.69