Finding the Fourth Proportional to 2,312.14, 3,463.89 and 1,158.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.14 : 3,463.89 = 1,158.70 : x
2. Step 2: Convert to fraction form
   2,312.14/3,463.89 = 1,158.70/x
3. Step 3: Cross multiply
   2,312.14x = 3,463.89 × 1,158.70
4. Step 4: Simplify right side
   2,312.14x = 4,013,609.34
5. Step 5: Solve for x
   x = 4,013,609.34/2,312.14
6. Step 6: Final answer
   x = 1,735.89