Finding the Fourth Proportional to 1,404.12, 1,937.76 and 1,030.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.12 : 1,937.76 = 1,030.92 : x
2. Step 2: Convert to fraction form
   1,404.12/1,937.76 = 1,030.92/x
3. Step 3: Cross multiply
   1,404.12x = 1,937.76 × 1,030.92
4. Step 4: Simplify right side
   1,404.12x = 1,997,675.54
5. Step 5: Solve for x
   x = 1,997,675.54/1,404.12
6. Step 6: Final answer
   x = 1,422.72