Finding the Fourth Proportional to 1,779.98, 2,453.89 and 1,116.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.98 : 2,453.89 = 1,116.39 : x
2. Step 2: Convert to fraction form
   1,779.98/2,453.89 = 1,116.39/x
3. Step 3: Cross multiply
   1,779.98x = 2,453.89 × 1,116.39
4. Step 4: Simplify right side
   1,779.98x = 2,739,498.26
5. Step 5: Solve for x
   x = 2,739,498.26/1,779.98
6. Step 6: Final answer
   x = 1,539.06