Finding the Fourth Proportional to 1,570.16, 2,162.04 and 1,403.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.16 : 2,162.04 = 1,403.84 : x
2. Step 2: Convert to fraction form
   1,570.16/2,162.04 = 1,403.84/x
3. Step 3: Cross multiply
   1,570.16x = 2,162.04 × 1,403.84
4. Step 4: Simplify right side
   1,570.16x = 3,035,158.23
5. Step 5: Solve for x
   x = 3,035,158.23/1,570.16
6. Step 6: Final answer
   x = 1,933.02