Finding the Fourth Proportional to 1,412.28, 1,947.78 and 1,404.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.28 : 1,947.78 = 1,404.99 : x
2. Step 2: Convert to fraction form
   1,412.28/1,947.78 = 1,404.99/x
3. Step 3: Cross multiply
   1,412.28x = 1,947.78 × 1,404.99
4. Step 4: Simplify right side
   1,412.28x = 2,736,611.42
5. Step 5: Solve for x
   x = 2,736,611.42/1,412.28
6. Step 6: Final answer
   x = 1,937.73