Finding the Fourth Proportional to 1,386,189.82, 2,080,114.17 and 1,273,385.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,189.82 : 2,080,114.17 = 1,273,385.98 : x
2. Step 2: Convert to fraction form
   1,386,189.82/2,080,114.17 = 1,273,385.98/x
3. Step 3: Cross multiply
   1,386,189.82x = 2,080,114.17 × 1,273,385.98
4. Step 4: Simplify right side
   1,386,189.82x = 2,648,788,220,877.34
5. Step 5: Solve for x
   x = 2,648,788,220,877.34/1,386,189.82
6. Step 6: Final answer
   x = 1,910,840.91