Finding the Fourth Proportional to 1,698,105.40, 2,343,300.72 and 934,139.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,698,105.40 : 2,343,300.72 = 934,139.32 : x
2. Step 2: Convert to fraction form
   1,698,105.40/2,343,300.72 = 934,139.32/x
3. Step 3: Cross multiply
   1,698,105.40x = 2,343,300.72 × 934,139.32
4. Step 4: Simplify right side
   1,698,105.40x = 2,188,969,341,136.31
5. Step 5: Solve for x
   x = 2,188,969,341,136.31/1,698,105.40
6. Step 6: Final answer
   x = 1,289,065.65