Finding the Fourth Proportional to 1,472.04, 2,030.31 and 1,030.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.04 : 2,030.31 = 1,030.05 : x
2. Step 2: Convert to fraction form
   1,472.04/2,030.31 = 1,030.05/x
3. Step 3: Cross multiply
   1,472.04x = 2,030.31 × 1,030.05
4. Step 4: Simplify right side
   1,472.04x = 2,091,320.82
5. Step 5: Solve for x
   x = 2,091,320.82/1,472.04
6. Step 6: Final answer
   x = 1,420.70