Finding the Fourth Proportional to 1,397.08, 1,928.24 and 924.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.08 : 1,928.24 = 924.99 : x
2. Step 2: Convert to fraction form
   1,397.08/1,928.24 = 924.99/x
3. Step 3: Cross multiply
   1,397.08x = 1,928.24 × 924.99
4. Step 4: Simplify right side
   1,397.08x = 1,783,602.72
5. Step 5: Solve for x
   x = 1,783,602.72/1,397.08
6. Step 6: Final answer
   x = 1,276.66