Finding the Fourth Proportional to 1,830.28, 2,523.06 and 1,387.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.28 : 2,523.06 = 1,387.38 : x
2. Step 2: Convert to fraction form
   1,830.28/2,523.06 = 1,387.38/x
3. Step 3: Cross multiply
   1,830.28x = 2,523.06 × 1,387.38
4. Step 4: Simplify right side
   1,830.28x = 3,500,442.98
5. Step 5: Solve for x
   x = 3,500,442.98/1,830.28
6. Step 6: Final answer
   x = 1,912.52