Finding the Fourth Proportional to 1,870.53, 2,805.21 and 992.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.53 : 2,805.21 = 992.52 : x
2. Step 2: Convert to fraction form
   1,870.53/2,805.21 = 992.52/x
3. Step 3: Cross multiply
   1,870.53x = 2,805.21 × 992.52
4. Step 4: Simplify right side
   1,870.53x = 2,784,227.03
5. Step 5: Solve for x
   x = 2,784,227.03/1,870.53
6. Step 6: Final answer
   x = 1,488.47