Finding the Fourth Proportional to 1,474.79, 2,210.71 and 948.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,474.79 : 2,210.71 = 948.12 : x
2. Step 2: Convert to fraction form
   1,474.79/2,210.71 = 948.12/x
3. Step 3: Cross multiply
   1,474.79x = 2,210.71 × 948.12
4. Step 4: Simplify right side
   1,474.79x = 2,096,018.37
5. Step 5: Solve for x
   x = 2,096,018.37/1,474.79
6. Step 6: Final answer
   x = 1,421.23