Finding the Fourth Proportional to 1,663,766.01, 2,293,916.63 and 1,388,519.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,766.01 : 2,293,916.63 = 1,388,519.76 : x
2. Step 2: Convert to fraction form
   1,663,766.01/2,293,916.63 = 1,388,519.76/x
3. Step 3: Cross multiply
   1,663,766.01x = 2,293,916.63 × 1,388,519.76
4. Step 4: Simplify right side
   1,663,766.01x = 3,185,148,572,018.91
5. Step 5: Solve for x
   x = 3,185,148,572,018.91/1,663,766.01
6. Step 6: Final answer
   x = 1,914,420.99