Finding the Fourth Proportional to 1,674.42, 2,513.27 and 1,059.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.42 : 2,513.27 = 1,059.31 : x
2. Step 2: Convert to fraction form
   1,674.42/2,513.27 = 1,059.31/x
3. Step 3: Cross multiply
   1,674.42x = 2,513.27 × 1,059.31
4. Step 4: Simplify right side
   1,674.42x = 2,662,332.04
5. Step 5: Solve for x
   x = 2,662,332.04/1,674.42
6. Step 6: Final answer
   x = 1,590.00