Finding the Fourth Proportional to 2,090, 2,884.30 and 1,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090 : 2,884.30 = 1,158.50 : x
2. Step 2: Convert to fraction form
   2,090/2,884.30 = 1,158.50/x
3. Step 3: Cross multiply
   2,090x = 2,884.30 × 1,158.50
4. Step 4: Simplify right side
   2,090x = 3,341,461.55
5. Step 5: Solve for x
   x = 3,341,461.55/2,090
6. Step 6: Final answer
   x = 1,598.79