Finding the Fourth Proportional to 1,935.20, 2,904.71 and 1,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.20 : 2,904.71 = 1,011.50 : x
2. Step 2: Convert to fraction form
   1,935.20/2,904.71 = 1,011.50/x
3. Step 3: Cross multiply
   1,935.20x = 2,904.71 × 1,011.50
4. Step 4: Simplify right side
   1,935.20x = 2,938,094.58
5. Step 5: Solve for x
   x = 2,938,094.58/1,935.20
6. Step 6: Final answer
   x = 1,518.24