Finding the Fourth Proportional to 2,356.45, 3,533.86 and 1,186

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.45 : 3,533.86 = 1,186 : x
2. Step 2: Convert to fraction form
   2,356.45/3,533.86 = 1,186/x
3. Step 3: Cross multiply
   2,356.45x = 3,533.86 × 1,186
4. Step 4: Simplify right side
   2,356.45x = 4,191,152.03
5. Step 5: Solve for x
   x = 4,191,152.03/2,356.45
6. Step 6: Final answer
   x = 1,778.59