Finding the Fourth Proportional to 1,667.67, 2,501.55 and 790.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.67 : 2,501.55 = 790.59 : x
2. Step 2: Convert to fraction form
   1,667.67/2,501.55 = 790.59/x
3. Step 3: Cross multiply
   1,667.67x = 2,501.55 × 790.59
4. Step 4: Simplify right side
   1,667.67x = 1,977,700.41
5. Step 5: Solve for x
   x = 1,977,700.41/1,667.67
6. Step 6: Final answer
   x = 1,185.91