Finding the Fourth Proportional to 1,779.57, 2,664.55 and 1,669.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.57 : 2,664.55 = 1,669.98 : x
2. Step 2: Convert to fraction form
   1,779.57/2,664.55 = 1,669.98/x
3. Step 3: Cross multiply
   1,779.57x = 2,664.55 × 1,669.98
4. Step 4: Simplify right side
   1,779.57x = 4,449,747.89
5. Step 5: Solve for x
   x = 4,449,747.89/1,779.57
6. Step 6: Final answer
   x = 2,500.46