Finding the Fourth Proportional to 1,836.18, 2,533.52 and 1,089.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.18 : 2,533.52 = 1,089.76 : x
2. Step 2: Convert to fraction form
   1,836.18/2,533.52 = 1,089.76/x
3. Step 3: Cross multiply
   1,836.18x = 2,533.52 × 1,089.76
4. Step 4: Simplify right side
   1,836.18x = 2,760,928.76
5. Step 5: Solve for x
   x = 2,760,928.76/1,836.18
6. Step 6: Final answer
   x = 1,503.63