Finding the Fourth Proportional to 1,415.61, 2,109.92 and 1,404.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.61 : 2,109.92 = 1,404.14 : x
2. Step 2: Convert to fraction form
   1,415.61/2,109.92 = 1,404.14/x
3. Step 3: Cross multiply
   1,415.61x = 2,109.92 × 1,404.14
4. Step 4: Simplify right side
   1,415.61x = 2,962,605.50
5. Step 5: Solve for x
   x = 2,962,605.50/1,415.61
6. Step 6: Final answer
   x = 2,092.81