Finding the Fourth Proportional to 1,503.48, 2,076.82 and 1,209.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.48 : 2,076.82 = 1,209.86 : x
2. Step 2: Convert to fraction form
   1,503.48/2,076.82 = 1,209.86/x
3. Step 3: Cross multiply
   1,503.48x = 2,076.82 × 1,209.86
4. Step 4: Simplify right side
   1,503.48x = 2,512,661.45
5. Step 5: Solve for x
   x = 2,512,661.45/1,503.48
6. Step 6: Final answer
   x = 1,671.23