Finding the Fourth Proportional to 1,505.32, 2,077.86 and 1,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.32 : 2,077.86 = 1,155.56 : x
2. Step 2: Convert to fraction form
   1,505.32/2,077.86 = 1,155.56/x
3. Step 3: Cross multiply
   1,505.32x = 2,077.86 × 1,155.56
4. Step 4: Simplify right side
   1,505.32x = 2,401,091.90
5. Step 5: Solve for x
   x = 2,401,091.90/1,505.32
6. Step 6: Final answer
   x = 1,595.07