Finding the Fourth Proportional to 1,779.03, 2,456.28 and 1,407.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.03 : 2,456.28 = 1,407.83 : x
2. Step 2: Convert to fraction form
   1,779.03/2,456.28 = 1,407.83/x
3. Step 3: Cross multiply
   1,779.03x = 2,456.28 × 1,407.83
4. Step 4: Simplify right side
   1,779.03x = 3,458,012.39
5. Step 5: Solve for x
   x = 3,458,012.39/1,779.03
6. Step 6: Final answer
   x = 1,943.76