Finding the Fourth Proportional to 1,927.61, 2,890.70 and 694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.61 : 2,890.70 = 694.72 : x
2. Step 2: Convert to fraction form
   1,927.61/2,890.70 = 694.72/x
3. Step 3: Cross multiply
   1,927.61x = 2,890.70 × 694.72
4. Step 4: Simplify right side
   1,927.61x = 2,008,227.10
5. Step 5: Solve for x
   x = 2,008,227.10/1,927.61
6. Step 6: Final answer
   x = 1,041.82