Finding the Fourth Proportional to 1,510,945.77, 2,266,507.50 and 431,375.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510,945.77 : 2,266,507.50 = 431,375.34 : x
2. Step 2: Convert to fraction form
   1,510,945.77/2,266,507.50 = 431,375.34/x
3. Step 3: Cross multiply
   1,510,945.77x = 2,266,507.50 × 431,375.34
4. Step 4: Simplify right side
   1,510,945.77x = 977,715,443,425.05
5. Step 5: Solve for x
   x = 977,715,443,425.05/1,510,945.77
6. Step 6: Final answer
   x = 647,088.38