Finding the Fourth Proportional to 1,830.81, 2,526.72 and 1,201.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.81 : 2,526.72 = 1,201.85 : x
2. Step 2: Convert to fraction form
   1,830.81/2,526.72 = 1,201.85/x
3. Step 3: Cross multiply
   1,830.81x = 2,526.72 × 1,201.85
4. Step 4: Simplify right side
   1,830.81x = 3,036,738.43
5. Step 5: Solve for x
   x = 3,036,738.43/1,830.81
6. Step 6: Final answer
   x = 1,658.69