Finding the Fourth Proportional to 2,083.90, 2,875.96 and 1,298.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.90 : 2,875.96 = 1,298.06 : x
2. Step 2: Convert to fraction form
   2,083.90/2,875.96 = 1,298.06/x
3. Step 3: Cross multiply
   2,083.90x = 2,875.96 × 1,298.06
4. Step 4: Simplify right side
   2,083.90x = 3,733,168.64
5. Step 5: Solve for x
   x = 3,733,168.64/2,083.90
6. Step 6: Final answer
   x = 1,791.43