Finding the Fourth Proportional to 1,930.08, 2,892.72 and 1,005.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.08 : 2,892.72 = 1,005.15 : x
2. Step 2: Convert to fraction form
   1,930.08/2,892.72 = 1,005.15/x
3. Step 3: Cross multiply
   1,930.08x = 2,892.72 × 1,005.15
4. Step 4: Simplify right side
   1,930.08x = 2,907,617.51
5. Step 5: Solve for x
   x = 2,907,617.51/1,930.08
6. Step 6: Final answer
   x = 1,506.48