Finding the Fourth Proportional to 1,384.76, 1,910.98 and 763.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.76 : 1,910.98 = 763.76 : x
2. Step 2: Convert to fraction form
   1,384.76/1,910.98 = 763.76/x
3. Step 3: Cross multiply
   1,384.76x = 1,910.98 × 763.76
4. Step 4: Simplify right side
   1,384.76x = 1,459,530.08
5. Step 5: Solve for x
   x = 1,459,530.08/1,384.76
6. Step 6: Final answer
   x = 1,053.99