Finding the Fourth Proportional to 1,758.81, 2,638.83 and 1,176.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.81 : 2,638.83 = 1,176.15 : x
2. Step 2: Convert to fraction form
   1,758.81/2,638.83 = 1,176.15/x
3. Step 3: Cross multiply
   1,758.81x = 2,638.83 × 1,176.15
4. Step 4: Simplify right side
   1,758.81x = 3,103,667.59
5. Step 5: Solve for x
   x = 3,103,667.59/1,758.81
6. Step 6: Final answer
   x = 1,764.64