Finding the Fourth Proportional to 1,034.91, 1,423.98 and 1,010.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.91 : 1,423.98 = 1,010.30 : x
2. Step 2: Convert to fraction form
   1,034.91/1,423.98 = 1,010.30/x
3. Step 3: Cross multiply
   1,034.91x = 1,423.98 × 1,010.30
4. Step 4: Simplify right side
   1,034.91x = 1,438,639.87
5. Step 5: Solve for x
   x = 1,438,639.87/1,034.91
6. Step 6: Final answer
   x = 1,390.11