Finding the Fourth Proportional to 1,836.37, 2,533.57 and 1,173.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.37 : 2,533.57 = 1,173.61 : x
2. Step 2: Convert to fraction form
   1,836.37/2,533.57 = 1,173.61/x
3. Step 3: Cross multiply
   1,836.37x = 2,533.57 × 1,173.61
4. Step 4: Simplify right side
   1,836.37x = 2,973,404.55
5. Step 5: Solve for x
   x = 2,973,404.55/1,836.37
6. Step 6: Final answer
   x = 1,619.18