Finding the Fourth Proportional to 5,111.16, 7,667.52 and 1,779.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.16 : 7,667.52 = 1,779.93 : x
2. Step 2: Convert to fraction form
   5,111.16/7,667.52 = 1,779.93/x
3. Step 3: Cross multiply
   5,111.16x = 7,667.52 × 1,779.93
4. Step 4: Simplify right side
   5,111.16x = 13,647,648.87
5. Step 5: Solve for x
   x = 13,647,648.87/5,111.16
6. Step 6: Final answer
   x = 2,670.17