Finding the Fourth Proportional to 1,353,941.01, 1,868,193.59 and 870,395.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353,941.01 : 1,868,193.59 = 870,395.31 : x
2. Step 2: Convert to fraction form
   1,353,941.01/1,868,193.59 = 870,395.31/x
3. Step 3: Cross multiply
   1,353,941.01x = 1,868,193.59 × 870,395.31
4. Step 4: Simplify right side
   1,353,941.01x = 1,626,066,934,556.09
5. Step 5: Solve for x
   x = 1,626,066,934,556.09/1,353,941.01
6. Step 6: Final answer
   x = 1,200,988.02