Finding the Fourth Proportional to 1,870.53, 2,805.69 and 572.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.53 : 2,805.69 = 572.00 : x
2. Step 2: Convert to fraction form
   1,870.53/2,805.69 = 572.00/x
3. Step 3: Cross multiply
   1,870.53x = 2,805.69 × 572.00
4. Step 4: Simplify right side
   1,870.53x = 1,604,839.58
5. Step 5: Solve for x
   x = 1,604,839.58/1,870.53
6. Step 6: Final answer
   x = 857.96