Finding the Fourth Proportional to 1,401.65, 1,933.88 and 904.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.65 : 1,933.88 = 904.10 : x
2. Step 2: Convert to fraction form
   1,401.65/1,933.88 = 904.10/x
3. Step 3: Cross multiply
   1,401.65x = 1,933.88 × 904.10
4. Step 4: Simplify right side
   1,401.65x = 1,748,423.17
5. Step 5: Solve for x
   x = 1,748,423.17/1,401.65
6. Step 6: Final answer
   x = 1,247.40