Finding the Fourth Proportional to 1,931.38, 2,898.59 and 699.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.38 : 2,898.59 = 699.98 : x
2. Step 2: Convert to fraction form
   1,931.38/2,898.59 = 699.98/x
3. Step 3: Cross multiply
   1,931.38x = 2,898.59 × 699.98
4. Step 4: Simplify right side
   1,931.38x = 2,028,937.04
5. Step 5: Solve for x
   x = 2,028,937.04/1,931.38
6. Step 6: Final answer
   x = 1,050.51