Finding the Fourth Proportional to 876,300.80, 1,314,641.34 and 269,091.18

Step by Step Solution

1. Step 1: Write the proportion equation
   876,300.80 : 1,314,641.34 = 269,091.18 : x
2. Step 2: Convert to fraction form
   876,300.80/1,314,641.34 = 269,091.18/x
3. Step 3: Cross multiply
   876,300.80x = 1,314,641.34 × 269,091.18
4. Step 4: Simplify right side
   876,300.80x = 353,758,389,457.38
5. Step 5: Solve for x
   x = 353,758,389,457.38/876,300.80
6. Step 6: Final answer
   x = 403,695.16