Finding the Fourth Proportional to 1,273.98, 1,910.00 and 615.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.98 : 1,910.00 = 615.53 : x
2. Step 2: Convert to fraction form
   1,273.98/1,910.00 = 615.53/x
3. Step 3: Cross multiply
   1,273.98x = 1,910.00 × 615.53
4. Step 4: Simplify right side
   1,273.98x = 1,175,649.67
5. Step 5: Solve for x
   x = 1,175,649.67/1,273.98
6. Step 6: Final answer
   x = 922.82