Finding the Fourth Proportional to 1,503.31, 2,074.52 and 873.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.31 : 2,074.52 = 873.89 : x
2. Step 2: Convert to fraction form
   1,503.31/2,074.52 = 873.89/x
3. Step 3: Cross multiply
   1,503.31x = 2,074.52 × 873.89
4. Step 4: Simplify right side
   1,503.31x = 1,812,902.28
5. Step 5: Solve for x
   x = 1,812,902.28/1,503.31
6. Step 6: Final answer
   x = 1,205.94