Finding the Fourth Proportional to 1,887.16, 2,830.24 and 1,337.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.16 : 2,830.24 = 1,337.72 : x
2. Step 2: Convert to fraction form
   1,887.16/2,830.24 = 1,337.72/x
3. Step 3: Cross multiply
   1,887.16x = 2,830.24 × 1,337.72
4. Step 4: Simplify right side
   1,887.16x = 3,786,068.65
5. Step 5: Solve for x
   x = 3,786,068.65/1,887.16
6. Step 6: Final answer
   x = 2,006.23