Finding the Fourth Proportional to 1,665,215.18, 2,298,052.67 and 1,020,510.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,215.18 : 2,298,052.67 = 1,020,510.87 : x
2. Step 2: Convert to fraction form
   1,665,215.18/2,298,052.67 = 1,020,510.87/x
3. Step 3: Cross multiply
   1,665,215.18x = 2,298,052.67 × 1,020,510.87
4. Step 4: Simplify right side
   1,665,215.18x = 2,345,187,729,567.52
5. Step 5: Solve for x
   x = 2,345,187,729,567.52/1,665,215.18
6. Step 6: Final answer
   x = 1,408,339.15