Finding the Fourth Proportional to 2,356.86, 3,533.69 and 1,107.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.86 : 3,533.69 = 1,107.02 : x
2. Step 2: Convert to fraction form
   2,356.86/3,533.69 = 1,107.02/x
3. Step 3: Cross multiply
   2,356.86x = 3,533.69 × 1,107.02
4. Step 4: Simplify right side
   2,356.86x = 3,911,865.50
5. Step 5: Solve for x
   x = 3,911,865.50/2,356.86
6. Step 6: Final answer
   x = 1,659.78