Finding the Fourth Proportional to 1,870.02, 2,804.31 and 571.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.02 : 2,804.31 = 571.14 : x
2. Step 2: Convert to fraction form
   1,870.02/2,804.31 = 571.14/x
3. Step 3: Cross multiply
   1,870.02x = 2,804.31 × 571.14
4. Step 4: Simplify right side
   1,870.02x = 1,601,653.61
5. Step 5: Solve for x
   x = 1,601,653.61/1,870.02
6. Step 6: Final answer
   x = 856.49