Finding the Fourth Proportional to 1,401.53, 1,933.71 and 903.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.53 : 1,933.71 = 903.98 : x
2. Step 2: Convert to fraction form
   1,401.53/1,933.71 = 903.98/x
3. Step 3: Cross multiply
   1,401.53x = 1,933.71 × 903.98
4. Step 4: Simplify right side
   1,401.53x = 1,748,025.50
5. Step 5: Solve for x
   x = 1,748,025.50/1,401.53
6. Step 6: Final answer
   x = 1,247.23