Finding the Fourth Proportional to 1,491,602.28, 2,235,905.25 and 479,980.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491,602.28 : 2,235,905.25 = 479,980.72 : x
2. Step 2: Convert to fraction form
   1,491,602.28/2,235,905.25 = 479,980.72/x
3. Step 3: Cross multiply
   1,491,602.28x = 2,235,905.25 × 479,980.72
4. Step 4: Simplify right side
   1,491,602.28x = 1,073,191,411,746.78
5. Step 5: Solve for x
   x = 1,073,191,411,746.78/1,491,602.28
6. Step 6: Final answer
   x = 719,488.99