Finding the Fourth Proportional to 1,091,085.21, 1,506,386.88 and 804,105.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,085.21 : 1,506,386.88 = 804,105.45 : x
2. Step 2: Convert to fraction form
   1,091,085.21/1,506,386.88 = 804,105.45/x
3. Step 3: Cross multiply
   1,091,085.21x = 1,506,386.88 × 804,105.45
4. Step 4: Simplify right side
   1,091,085.21x = 1,211,293,900,016.50
5. Step 5: Solve for x
   x = 1,211,293,900,016.50/1,091,085.21
6. Step 6: Final answer
   x = 1,110,173.51