Finding the Fourth Proportional to 1,167.59, 1,752.39 and 612.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.59 : 1,752.39 = 612.69 : x
2. Step 2: Convert to fraction form
   1,167.59/1,752.39 = 612.69/x
3. Step 3: Cross multiply
   1,167.59x = 1,752.39 × 612.69
4. Step 4: Simplify right side
   1,167.59x = 1,073,667.56
5. Step 5: Solve for x
   x = 1,073,667.56/1,167.59
6. Step 6: Final answer
   x = 919.56