Finding the Fourth Proportional to 1,405.46, 1,938.88 and 901.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.46 : 1,938.88 = 901.01 : x
2. Step 2: Convert to fraction form
   1,405.46/1,938.88 = 901.01/x
3. Step 3: Cross multiply
   1,405.46x = 1,938.88 × 901.01
4. Step 4: Simplify right side
   1,405.46x = 1,746,950.27
5. Step 5: Solve for x
   x = 1,746,950.27/1,405.46
6. Step 6: Final answer
   x = 1,242.97