Finding the Fourth Proportional to 1,898.84, 2,839.89 and 1,116.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.84 : 2,839.89 = 1,116.92 : x
2. Step 2: Convert to fraction form
   1,898.84/2,839.89 = 1,116.92/x
3. Step 3: Cross multiply
   1,898.84x = 2,839.89 × 1,116.92
4. Step 4: Simplify right side
   1,898.84x = 3,171,941.23
5. Step 5: Solve for x
   x = 3,171,941.23/1,898.84
6. Step 6: Final answer
   x = 1,670.46