Finding the Fourth Proportional to 1,360.31, 1,876.41 and 1,030.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.31 : 1,876.41 = 1,030.01 : x
2. Step 2: Convert to fraction form
   1,360.31/1,876.41 = 1,030.01/x
3. Step 3: Cross multiply
   1,360.31x = 1,876.41 × 1,030.01
4. Step 4: Simplify right side
   1,360.31x = 1,932,711.68
5. Step 5: Solve for x
   x = 1,932,711.68/1,360.31
6. Step 6: Final answer
   x = 1,420.79