Finding the Fourth Proportional to 1,503.02, 2,255.34 and 1,137.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.02 : 2,255.34 = 1,137.72 : x
2. Step 2: Convert to fraction form
   1,503.02/2,255.34 = 1,137.72/x
3. Step 3: Cross multiply
   1,503.02x = 2,255.34 × 1,137.72
4. Step 4: Simplify right side
   1,503.02x = 2,565,945.42
5. Step 5: Solve for x
   x = 2,565,945.42/1,503.02
6. Step 6: Final answer
   x = 1,707.19