Finding the Fourth Proportional to 1,802.40, 2,698.72 and 934.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.40 : 2,698.72 = 934.89 : x
2. Step 2: Convert to fraction form
   1,802.40/2,698.72 = 934.89/x
3. Step 3: Cross multiply
   1,802.40x = 2,698.72 × 934.89
4. Step 4: Simplify right side
   1,802.40x = 2,523,006.34
5. Step 5: Solve for x
   x = 2,523,006.34/1,802.40
6. Step 6: Final answer
   x = 1,399.80