Finding the Fourth Proportional to 2,358.46, 3,536.66 and 1,187.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,358.46 : 3,536.66 = 1,187.72 : x
2. Step 2: Convert to fraction form
   2,358.46/3,536.66 = 1,187.72/x
3. Step 3: Cross multiply
   2,358.46x = 3,536.66 × 1,187.72
4. Step 4: Simplify right side
   2,358.46x = 4,200,561.82
5. Step 5: Solve for x
   x = 4,200,561.82/2,358.46
6. Step 6: Final answer
   x = 1,781.06