Finding the Fourth Proportional to 1,584,281.34, 2,186,308.86 and 859,128.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,281.34 : 2,186,308.86 = 859,128.87 : x
2. Step 2: Convert to fraction form
   1,584,281.34/2,186,308.86 = 859,128.87/x
3. Step 3: Cross multiply
   1,584,281.34x = 2,186,308.86 × 859,128.87
4. Step 4: Simplify right side
   1,584,281.34x = 1,878,321,060,362.79
5. Step 5: Solve for x
   x = 1,878,321,060,362.79/1,584,281.34
6. Step 6: Final answer
   x = 1,185,598.17