Finding the Fourth Proportional to 1,748.79, 2,412.79 and 1,158.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.79 : 2,412.79 = 1,158.71 : x
2. Step 2: Convert to fraction form
   1,748.79/2,412.79 = 1,158.71/x
3. Step 3: Cross multiply
   1,748.79x = 2,412.79 × 1,158.71
4. Step 4: Simplify right side
   1,748.79x = 2,795,708.94
5. Step 5: Solve for x
   x = 2,795,708.94/1,748.79
6. Step 6: Final answer
   x = 1,598.65