Finding the Fourth Proportional to 902,978.16, 1,354,606.80 and 303,892.34

Step by Step Solution

1. Step 1: Write the proportion equation
   902,978.16 : 1,354,606.80 = 303,892.34 : x
2. Step 2: Convert to fraction form
   902,978.16/1,354,606.80 = 303,892.34/x
3. Step 3: Cross multiply
   902,978.16x = 1,354,606.80 × 303,892.34
4. Step 4: Simplify right side
   902,978.16x = 411,654,630,231.91
5. Step 5: Solve for x
   x = 411,654,630,231.91/902,978.16
6. Step 6: Final answer
   x = 455,885.48