Finding the Fourth Proportional to 1,830.96, 2,526.78 and 1,085.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.96 : 2,526.78 = 1,085.58 : x
2. Step 2: Convert to fraction form
   1,830.96/2,526.78 = 1,085.58/x
3. Step 3: Cross multiply
   1,830.96x = 2,526.78 × 1,085.58
4. Step 4: Simplify right side
   1,830.96x = 2,743,021.83
5. Step 5: Solve for x
   x = 2,743,021.83/1,830.96
6. Step 6: Final answer
   x = 1,498.13