Finding the Fourth Proportional to 1,935.30, 2,901.20 and 1,242.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.30 : 2,901.20 = 1,242.17 : x
2. Step 2: Convert to fraction form
   1,935.30/2,901.20 = 1,242.17/x
3. Step 3: Cross multiply
   1,935.30x = 2,901.20 × 1,242.17
4. Step 4: Simplify right side
   1,935.30x = 3,603,762.89
5. Step 5: Solve for x
   x = 3,603,762.89/1,935.30
6. Step 6: Final answer
   x = 1,862.12