Finding the Fourth Proportional to 1,570.42, 2,356.02 and 1,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.42 : 2,356.02 = 1,109.10 : x
2. Step 2: Convert to fraction form
   1,570.42/2,356.02 = 1,109.10/x
3. Step 3: Cross multiply
   1,570.42x = 2,356.02 × 1,109.10
4. Step 4: Simplify right side
   1,570.42x = 2,613,064.90
5. Step 5: Solve for x
   x = 2,613,064.90/1,570.42
6. Step 6: Final answer
   x = 1,663.93