Finding the Fourth Proportional to 1,887.57, 2,830.28 and 1,008.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.57 : 2,830.28 = 1,008.99 : x
2. Step 2: Convert to fraction form
   1,887.57/2,830.28 = 1,008.99/x
3. Step 3: Cross multiply
   1,887.57x = 2,830.28 × 1,008.99
4. Step 4: Simplify right side
   1,887.57x = 2,855,719.17
5. Step 5: Solve for x
   x = 2,855,719.17/1,887.57
6. Step 6: Final answer
   x = 1,512.91