Finding the Fourth Proportional to 1,502.39, 2,070.83 and 1,170.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.39 : 2,070.83 = 1,170.25 : x
2. Step 2: Convert to fraction form
   1,502.39/2,070.83 = 1,170.25/x
3. Step 3: Cross multiply
   1,502.39x = 2,070.83 × 1,170.25
4. Step 4: Simplify right side
   1,502.39x = 2,423,386.56
5. Step 5: Solve for x
   x = 2,423,386.56/1,502.39
6. Step 6: Final answer
   x = 1,613.02