Finding the Fourth Proportional to 602,978.81, 904,488.53 and 303,296.00

Step by Step Solution

1. Step 1: Write the proportion equation
   602,978.81 : 904,488.53 = 303,296.00 : x
2. Step 2: Convert to fraction form
   602,978.81/904,488.53 = 303,296.00/x
3. Step 3: Cross multiply
   602,978.81x = 904,488.53 × 303,296.00
4. Step 4: Simplify right side
   602,978.81x = 274,327,747,155.96
5. Step 5: Solve for x
   x = 274,327,747,155.96/602,978.81
6. Step 6: Final answer
   x = 454,954.21