Finding the Fourth Proportional to 1,404.13, 1,947.05 and 1,357.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.13 : 1,947.05 = 1,357.43 : x
2. Step 2: Convert to fraction form
   1,404.13/1,947.05 = 1,357.43/x
3. Step 3: Cross multiply
   1,404.13x = 1,947.05 × 1,357.43
4. Step 4: Simplify right side
   1,404.13x = 2,642,967.56
5. Step 5: Solve for x
   x = 2,642,967.56/1,404.13
6. Step 6: Final answer
   x = 1,882.28