Finding the Fourth Proportional to 1,660,111.72, 2,292,011.95 and 1,354,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,660,111.72 : 2,292,011.95 = 1,354,916.10 : x
2. Step 2: Convert to fraction form
   1,660,111.72/2,292,011.95 = 1,354,916.10/x
3. Step 3: Cross multiply
   1,660,111.72x = 2,292,011.95 × 1,354,916.10
4. Step 4: Simplify right side
   1,660,111.72x = 3,105,483,892,447.40
5. Step 5: Solve for x
   x = 3,105,483,892,447.40/1,660,111.72
6. Step 6: Final answer
   x = 1,870,647.53