Finding the Fourth Proportional to 1,404.24, 1,925.22 and 1,379.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.24 : 1,925.22 = 1,379.70 : x
2. Step 2: Convert to fraction form
   1,404.24/1,925.22 = 1,379.70/x
3. Step 3: Cross multiply
   1,404.24x = 1,925.22 × 1,379.70
4. Step 4: Simplify right side
   1,404.24x = 2,656,226.03
5. Step 5: Solve for x
   x = 2,656,226.03/1,404.24
6. Step 6: Final answer
   x = 1,891.58