Finding the Fourth Proportional to 1,899.02, 2,849.86 and 925.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.02 : 2,849.86 = 925.82 : x
2. Step 2: Convert to fraction form
   1,899.02/2,849.86 = 925.82/x
3. Step 3: Cross multiply
   1,899.02x = 2,849.86 × 925.82
4. Step 4: Simplify right side
   1,899.02x = 2,638,457.39
5. Step 5: Solve for x
   x = 2,638,457.39/1,899.02
6. Step 6: Final answer
   x = 1,389.38