Finding the Fourth Proportional to 1,833.69, 2,748.47 and 909.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,833.69 : 2,748.47 = 909.91 : x
2. Step 2: Convert to fraction form
   1,833.69/2,748.47 = 909.91/x
3. Step 3: Cross multiply
   1,833.69x = 2,748.47 × 909.91
4. Step 4: Simplify right side
   1,833.69x = 2,500,860.34
5. Step 5: Solve for x
   x = 2,500,860.34/1,833.69
6. Step 6: Final answer
   x = 1,363.84