Finding the Fourth Proportional to 1,805.63, 2,491.82 and 1,106.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.63 : 2,491.82 = 1,106.87 : x
2. Step 2: Convert to fraction form
   1,805.63/2,491.82 = 1,106.87/x
3. Step 3: Cross multiply
   1,805.63x = 2,491.82 × 1,106.87
4. Step 4: Simplify right side
   1,805.63x = 2,758,111.11
5. Step 5: Solve for x
   x = 2,758,111.11/1,805.63
6. Step 6: Final answer
   x = 1,527.51