Finding the Fourth Proportional to 1,368.01, 1,886.20 and 948.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.01 : 1,886.20 = 948.72 : x
2. Step 2: Convert to fraction form
   1,368.01/1,886.20 = 948.72/x
3. Step 3: Cross multiply
   1,368.01x = 1,886.20 × 948.72
4. Step 4: Simplify right side
   1,368.01x = 1,789,475.66
5. Step 5: Solve for x
   x = 1,789,475.66/1,368.01
6. Step 6: Final answer
   x = 1,308.09