Finding the Fourth Proportional to 918,096.95, 1,267,005.67 and 510,215.98

Step by Step Solution

1. Step 1: Write the proportion equation
   918,096.95 : 1,267,005.67 = 510,215.98 : x
2. Step 2: Convert to fraction form
   918,096.95/1,267,005.67 = 510,215.98/x
3. Step 3: Cross multiply
   918,096.95x = 1,267,005.67 × 510,215.98
4. Step 4: Simplify right side
   918,096.95x = 646,446,535,141.55
5. Step 5: Solve for x
   x = 646,446,535,141.55/918,096.95
6. Step 6: Final answer
   x = 704,115.77