Finding the Fourth Proportional to 1,427.99, 1,969.07 and 929.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.99 : 1,969.07 = 929.71 : x
2. Step 2: Convert to fraction form
   1,427.99/1,969.07 = 929.71/x
3. Step 3: Cross multiply
   1,427.99x = 1,969.07 × 929.71
4. Step 4: Simplify right side
   1,427.99x = 1,830,664.07
5. Step 5: Solve for x
   x = 1,830,664.07/1,427.99
6. Step 6: Final answer
   x = 1,281.99