Finding the Fourth Proportional to 1,609.52, 2,215.52 and 1,402.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.52 : 2,215.52 = 1,402.16 : x
2. Step 2: Convert to fraction form
   1,609.52/2,215.52 = 1,402.16/x
3. Step 3: Cross multiply
   1,609.52x = 2,215.52 × 1,402.16
4. Step 4: Simplify right side
   1,609.52x = 3,106,513.52
5. Step 5: Solve for x
   x = 3,106,513.52/1,609.52
6. Step 6: Final answer
   x = 1,930.09