Finding the Fourth Proportional to 1,503.89, 2,074.72 and 943.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.89 : 2,074.72 = 943.98 : x
2. Step 2: Convert to fraction form
   1,503.89/2,074.72 = 943.98/x
3. Step 3: Cross multiply
   1,503.89x = 2,074.72 × 943.98
4. Step 4: Simplify right side
   1,503.89x = 1,958,494.19
5. Step 5: Solve for x
   x = 1,958,494.19/1,503.89
6. Step 6: Final answer
   x = 1,302.29