Finding the Fourth Proportional to 2,126.76, 3,189.43 and 893.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.76 : 3,189.43 = 893.94 : x
2. Step 2: Convert to fraction form
   2,126.76/3,189.43 = 893.94/x
3. Step 3: Cross multiply
   2,126.76x = 3,189.43 × 893.94
4. Step 4: Simplify right side
   2,126.76x = 2,851,156.82
5. Step 5: Solve for x
   x = 2,851,156.82/2,126.76
6. Step 6: Final answer
   x = 1,340.61