Finding the Fourth Proportional to 1,503.09, 2,074.83 and 1,131.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.09 : 2,074.83 = 1,131.15 : x
2. Step 2: Convert to fraction form
   1,503.09/2,074.83 = 1,131.15/x
3. Step 3: Cross multiply
   1,503.09x = 2,074.83 × 1,131.15
4. Step 4: Simplify right side
   1,503.09x = 2,346,943.95
5. Step 5: Solve for x
   x = 2,346,943.95/1,503.09
6. Step 6: Final answer
   x = 1,561.41