Finding the Fourth Proportional to 1,887.57, 2,824.07 and 1,801.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.57 : 2,824.07 = 1,801.31 : x
2. Step 2: Convert to fraction form
   1,887.57/2,824.07 = 1,801.31/x
3. Step 3: Cross multiply
   1,887.57x = 2,824.07 × 1,801.31
4. Step 4: Simplify right side
   1,887.57x = 5,087,002.40
5. Step 5: Solve for x
   x = 5,087,002.40/1,887.57
6. Step 6: Final answer
   x = 2,695.00